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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     * <a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     * <a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    package org.apache.commons.lang;<a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    import java.util.ArrayList;<a name="line.19"></a>
<FONT color="green">020</FONT>    import java.util.Collection;<a name="line.20"></a>
<FONT color="green">021</FONT>    import java.util.Iterator;<a name="line.21"></a>
<FONT color="green">022</FONT>    import java.util.List;<a name="line.22"></a>
<FONT color="green">023</FONT>    import java.util.Locale;<a name="line.23"></a>
<FONT color="green">024</FONT>    <a name="line.24"></a>
<FONT color="green">025</FONT>    import org.apache.commons.lang.text.StrBuilder;<a name="line.25"></a>
<FONT color="green">026</FONT>    <a name="line.26"></a>
<FONT color="green">027</FONT>    /**<a name="line.27"></a>
<FONT color="green">028</FONT>     * &lt;p&gt;Operations on {@link java.lang.String} that are<a name="line.28"></a>
<FONT color="green">029</FONT>     * &lt;code&gt;null&lt;/code&gt; safe.&lt;/p&gt;<a name="line.29"></a>
<FONT color="green">030</FONT>     *<a name="line.30"></a>
<FONT color="green">031</FONT>     * &lt;ul&gt;<a name="line.31"></a>
<FONT color="green">032</FONT>     *  &lt;li&gt;&lt;b&gt;IsEmpty/IsBlank&lt;/b&gt;<a name="line.32"></a>
<FONT color="green">033</FONT>     *      - checks if a String contains text&lt;/li&gt;<a name="line.33"></a>
<FONT color="green">034</FONT>     *  &lt;li&gt;&lt;b&gt;Trim/Strip&lt;/b&gt;<a name="line.34"></a>
<FONT color="green">035</FONT>     *      - removes leading and trailing whitespace&lt;/li&gt;<a name="line.35"></a>
<FONT color="green">036</FONT>     *  &lt;li&gt;&lt;b&gt;Equals&lt;/b&gt;<a name="line.36"></a>
<FONT color="green">037</FONT>     *      - compares two strings null-safe&lt;/li&gt;<a name="line.37"></a>
<FONT color="green">038</FONT>     *  &lt;li&gt;&lt;b&gt;startsWith&lt;/b&gt;<a name="line.38"></a>
<FONT color="green">039</FONT>     *      - check if a String starts with a prefix null-safe&lt;/li&gt;<a name="line.39"></a>
<FONT color="green">040</FONT>     *  &lt;li&gt;&lt;b&gt;endsWith&lt;/b&gt;<a name="line.40"></a>
<FONT color="green">041</FONT>     *      - check if a String ends with a suffix null-safe&lt;/li&gt;<a name="line.41"></a>
<FONT color="green">042</FONT>     *  &lt;li&gt;&lt;b&gt;IndexOf/LastIndexOf/Contains&lt;/b&gt;<a name="line.42"></a>
<FONT color="green">043</FONT>     *      - null-safe index-of checks<a name="line.43"></a>
<FONT color="green">044</FONT>     *  &lt;li&gt;&lt;b&gt;IndexOfAny/LastIndexOfAny/IndexOfAnyBut/LastIndexOfAnyBut&lt;/b&gt;<a name="line.44"></a>
<FONT color="green">045</FONT>     *      - index-of any of a set of Strings&lt;/li&gt;<a name="line.45"></a>
<FONT color="green">046</FONT>     *  &lt;li&gt;&lt;b&gt;ContainsOnly/ContainsNone/ContainsAny&lt;/b&gt;<a name="line.46"></a>
<FONT color="green">047</FONT>     *      - does String contains only/none/any of these characters&lt;/li&gt;<a name="line.47"></a>
<FONT color="green">048</FONT>     *  &lt;li&gt;&lt;b&gt;Substring/Left/Right/Mid&lt;/b&gt;<a name="line.48"></a>
<FONT color="green">049</FONT>     *      - null-safe substring extractions&lt;/li&gt;<a name="line.49"></a>
<FONT color="green">050</FONT>     *  &lt;li&gt;&lt;b&gt;SubstringBefore/SubstringAfter/SubstringBetween&lt;/b&gt;<a name="line.50"></a>
<FONT color="green">051</FONT>     *      - substring extraction relative to other strings&lt;/li&gt;<a name="line.51"></a>
<FONT color="green">052</FONT>     *  &lt;li&gt;&lt;b&gt;Split/Join&lt;/b&gt;<a name="line.52"></a>
<FONT color="green">053</FONT>     *      - splits a String into an array of substrings and vice versa&lt;/li&gt;<a name="line.53"></a>
<FONT color="green">054</FONT>     *  &lt;li&gt;&lt;b&gt;Remove/Delete&lt;/b&gt;<a name="line.54"></a>
<FONT color="green">055</FONT>     *      - removes part of a String&lt;/li&gt;<a name="line.55"></a>
<FONT color="green">056</FONT>     *  &lt;li&gt;&lt;b&gt;Replace/Overlay&lt;/b&gt;<a name="line.56"></a>
<FONT color="green">057</FONT>     *      - Searches a String and replaces one String with another&lt;/li&gt;<a name="line.57"></a>
<FONT color="green">058</FONT>     *  &lt;li&gt;&lt;b&gt;Chomp/Chop&lt;/b&gt;<a name="line.58"></a>
<FONT color="green">059</FONT>     *      - removes the last part of a String&lt;/li&gt;<a name="line.59"></a>
<FONT color="green">060</FONT>     *  &lt;li&gt;&lt;b&gt;LeftPad/RightPad/Center/Repeat&lt;/b&gt;<a name="line.60"></a>
<FONT color="green">061</FONT>     *      - pads a String&lt;/li&gt;<a name="line.61"></a>
<FONT color="green">062</FONT>     *  &lt;li&gt;&lt;b&gt;UpperCase/LowerCase/SwapCase/Capitalize/Uncapitalize&lt;/b&gt;<a name="line.62"></a>
<FONT color="green">063</FONT>     *      - changes the case of a String&lt;/li&gt;<a name="line.63"></a>
<FONT color="green">064</FONT>     *  &lt;li&gt;&lt;b&gt;CountMatches&lt;/b&gt;<a name="line.64"></a>
<FONT color="green">065</FONT>     *      - counts the number of occurrences of one String in another&lt;/li&gt;<a name="line.65"></a>
<FONT color="green">066</FONT>     *  &lt;li&gt;&lt;b&gt;IsAlpha/IsNumeric/IsWhitespace/IsAsciiPrintable&lt;/b&gt;<a name="line.66"></a>
<FONT color="green">067</FONT>     *      - checks the characters in a String&lt;/li&gt;<a name="line.67"></a>
<FONT color="green">068</FONT>     *  &lt;li&gt;&lt;b&gt;DefaultString&lt;/b&gt;<a name="line.68"></a>
<FONT color="green">069</FONT>     *      - protects against a null input String&lt;/li&gt;<a name="line.69"></a>
<FONT color="green">070</FONT>     *  &lt;li&gt;&lt;b&gt;Reverse/ReverseDelimited&lt;/b&gt;<a name="line.70"></a>
<FONT color="green">071</FONT>     *      - reverses a String&lt;/li&gt;<a name="line.71"></a>
<FONT color="green">072</FONT>     *  &lt;li&gt;&lt;b&gt;Abbreviate&lt;/b&gt;<a name="line.72"></a>
<FONT color="green">073</FONT>     *      - abbreviates a string using ellipsis&lt;/li&gt;<a name="line.73"></a>
<FONT color="green">074</FONT>     *  &lt;li&gt;&lt;b&gt;Difference&lt;/b&gt;<a name="line.74"></a>
<FONT color="green">075</FONT>     *      - compares Strings and reports on their differences&lt;/li&gt;<a name="line.75"></a>
<FONT color="green">076</FONT>     *  &lt;li&gt;&lt;b&gt;LevensteinDistance&lt;/b&gt;<a name="line.76"></a>
<FONT color="green">077</FONT>     *      - the number of changes needed to change one String into another&lt;/li&gt;<a name="line.77"></a>
<FONT color="green">078</FONT>     * &lt;/ul&gt;<a name="line.78"></a>
<FONT color="green">079</FONT>     *<a name="line.79"></a>
<FONT color="green">080</FONT>     * &lt;p&gt;The &lt;code&gt;StringUtils&lt;/code&gt; class defines certain words related to<a name="line.80"></a>
<FONT color="green">081</FONT>     * String handling.&lt;/p&gt;<a name="line.81"></a>
<FONT color="green">082</FONT>     *<a name="line.82"></a>
<FONT color="green">083</FONT>     * &lt;ul&gt;<a name="line.83"></a>
<FONT color="green">084</FONT>     *  &lt;li&gt;null - &lt;code&gt;null&lt;/code&gt;&lt;/li&gt;<a name="line.84"></a>
<FONT color="green">085</FONT>     *  &lt;li&gt;empty - a zero-length string (&lt;code&gt;""&lt;/code&gt;)&lt;/li&gt;<a name="line.85"></a>
<FONT color="green">086</FONT>     *  &lt;li&gt;space - the space character (&lt;code&gt;' '&lt;/code&gt;, char 32)&lt;/li&gt;<a name="line.86"></a>
<FONT color="green">087</FONT>     *  &lt;li&gt;whitespace - the characters defined by {@link Character#isWhitespace(char)}&lt;/li&gt;<a name="line.87"></a>
<FONT color="green">088</FONT>     *  &lt;li&gt;trim - the characters &amp;lt;= 32 as in {@link String#trim()}&lt;/li&gt;<a name="line.88"></a>
<FONT color="green">089</FONT>     * &lt;/ul&gt;<a name="line.89"></a>
<FONT color="green">090</FONT>     *<a name="line.90"></a>
<FONT color="green">091</FONT>     * &lt;p&gt;&lt;code&gt;StringUtils&lt;/code&gt; handles &lt;code&gt;null&lt;/code&gt; input Strings quietly.<a name="line.91"></a>
<FONT color="green">092</FONT>     * That is to say that a &lt;code&gt;null&lt;/code&gt; input will return &lt;code&gt;null&lt;/code&gt;.<a name="line.92"></a>
<FONT color="green">093</FONT>     * Where a &lt;code&gt;boolean&lt;/code&gt; or &lt;code&gt;int&lt;/code&gt; is being returned<a name="line.93"></a>
<FONT color="green">094</FONT>     * details vary by method.&lt;/p&gt;<a name="line.94"></a>
<FONT color="green">095</FONT>     *<a name="line.95"></a>
<FONT color="green">096</FONT>     * &lt;p&gt;A side effect of the &lt;code&gt;null&lt;/code&gt; handling is that a<a name="line.96"></a>
<FONT color="green">097</FONT>     * &lt;code&gt;NullPointerException&lt;/code&gt; should be considered a bug in<a name="line.97"></a>
<FONT color="green">098</FONT>     * &lt;code&gt;StringUtils&lt;/code&gt; (except for deprecated methods).&lt;/p&gt;<a name="line.98"></a>
<FONT color="green">099</FONT>     *<a name="line.99"></a>
<FONT color="green">100</FONT>     * &lt;p&gt;Methods in this class give sample code to explain their operation.<a name="line.100"></a>
<FONT color="green">101</FONT>     * The symbol &lt;code&gt;*&lt;/code&gt; is used to indicate any input including &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.101"></a>
<FONT color="green">102</FONT>     *<a name="line.102"></a>
<FONT color="green">103</FONT>     * &lt;p&gt;#ThreadSafe#&lt;/p&gt;<a name="line.103"></a>
<FONT color="green">104</FONT>     * @see java.lang.String<a name="line.104"></a>
<FONT color="green">105</FONT>     * @author Apache Software Foundation<a name="line.105"></a>
<FONT color="green">106</FONT>     * @author &lt;a href="http://jakarta.apache.org/turbine/"&gt;Apache Jakarta Turbine&lt;/a&gt;<a name="line.106"></a>
<FONT color="green">107</FONT>     * @author &lt;a href="mailto:jon@latchkey.com"&gt;Jon S. Stevens&lt;/a&gt;<a name="line.107"></a>
<FONT color="green">108</FONT>     * @author Daniel L. Rall<a name="line.108"></a>
<FONT color="green">109</FONT>     * @author &lt;a href="mailto:gcoladonato@yahoo.com"&gt;Greg Coladonato&lt;/a&gt;<a name="line.109"></a>
<FONT color="green">110</FONT>     * @author &lt;a href="mailto:ed@apache.org"&gt;Ed Korthof&lt;/a&gt;<a name="line.110"></a>
<FONT color="green">111</FONT>     * @author &lt;a href="mailto:rand_mcneely@yahoo.com"&gt;Rand McNeely&lt;/a&gt;<a name="line.111"></a>
<FONT color="green">112</FONT>     * @author &lt;a href="mailto:fredrik@westermarck.com"&gt;Fredrik Westermarck&lt;/a&gt;<a name="line.112"></a>
<FONT color="green">113</FONT>     * @author Holger Krauth<a name="line.113"></a>
<FONT color="green">114</FONT>     * @author &lt;a href="mailto:alex@purpletech.com"&gt;Alexander Day Chaffee&lt;/a&gt;<a name="line.114"></a>
<FONT color="green">115</FONT>     * @author &lt;a href="mailto:hps@intermeta.de"&gt;Henning P. Schmiedehausen&lt;/a&gt;<a name="line.115"></a>
<FONT color="green">116</FONT>     * @author Arun Mammen Thomas<a name="line.116"></a>
<FONT color="green">117</FONT>     * @author Gary Gregory<a name="line.117"></a>
<FONT color="green">118</FONT>     * @author Phil Steitz<a name="line.118"></a>
<FONT color="green">119</FONT>     * @author Al Chou<a name="line.119"></a>
<FONT color="green">120</FONT>     * @author Michael Davey<a name="line.120"></a>
<FONT color="green">121</FONT>     * @author Reuben Sivan<a name="line.121"></a>
<FONT color="green">122</FONT>     * @author Chris Hyzer<a name="line.122"></a>
<FONT color="green">123</FONT>     * @author Scott Johnson<a name="line.123"></a>
<FONT color="green">124</FONT>     * @since 1.0<a name="line.124"></a>
<FONT color="green">125</FONT>     * @version $Id: StringUtils.java 1058365 2011-01-13 00:04:49Z niallp $<a name="line.125"></a>
<FONT color="green">126</FONT>     */<a name="line.126"></a>
<FONT color="green">127</FONT>    //@Immutable<a name="line.127"></a>
<FONT color="green">128</FONT>    public class StringUtils {<a name="line.128"></a>
<FONT color="green">129</FONT>        // Performance testing notes (JDK 1.4, Jul03, scolebourne)<a name="line.129"></a>
<FONT color="green">130</FONT>        // Whitespace:<a name="line.130"></a>
<FONT color="green">131</FONT>        // Character.isWhitespace() is faster than WHITESPACE.indexOf()<a name="line.131"></a>
<FONT color="green">132</FONT>        // where WHITESPACE is a string of all whitespace characters<a name="line.132"></a>
<FONT color="green">133</FONT>        //<a name="line.133"></a>
<FONT color="green">134</FONT>        // Character access:<a name="line.134"></a>
<FONT color="green">135</FONT>        // String.charAt(n) versus toCharArray(), then array[n]<a name="line.135"></a>
<FONT color="green">136</FONT>        // String.charAt(n) is about 15% worse for a 10K string<a name="line.136"></a>
<FONT color="green">137</FONT>        // They are about equal for a length 50 string<a name="line.137"></a>
<FONT color="green">138</FONT>        // String.charAt(n) is about 4 times better for a length 3 string<a name="line.138"></a>
<FONT color="green">139</FONT>        // String.charAt(n) is best bet overall<a name="line.139"></a>
<FONT color="green">140</FONT>        //<a name="line.140"></a>
<FONT color="green">141</FONT>        // Append:<a name="line.141"></a>
<FONT color="green">142</FONT>        // String.concat about twice as fast as StringBuffer.append<a name="line.142"></a>
<FONT color="green">143</FONT>        // (not sure who tested this)<a name="line.143"></a>
<FONT color="green">144</FONT>    <a name="line.144"></a>
<FONT color="green">145</FONT>        /**<a name="line.145"></a>
<FONT color="green">146</FONT>         * The empty String &lt;code&gt;""&lt;/code&gt;.<a name="line.146"></a>
<FONT color="green">147</FONT>         * @since 2.0<a name="line.147"></a>
<FONT color="green">148</FONT>         */<a name="line.148"></a>
<FONT color="green">149</FONT>        public static final String EMPTY = "";<a name="line.149"></a>
<FONT color="green">150</FONT>    <a name="line.150"></a>
<FONT color="green">151</FONT>        /**<a name="line.151"></a>
<FONT color="green">152</FONT>         * Represents a failed index search.<a name="line.152"></a>
<FONT color="green">153</FONT>         * @since 2.1<a name="line.153"></a>
<FONT color="green">154</FONT>         */<a name="line.154"></a>
<FONT color="green">155</FONT>        public static final int INDEX_NOT_FOUND = -1;<a name="line.155"></a>
<FONT color="green">156</FONT>    <a name="line.156"></a>
<FONT color="green">157</FONT>        /**<a name="line.157"></a>
<FONT color="green">158</FONT>         * &lt;p&gt;The maximum size to which the padding constant(s) can expand.&lt;/p&gt;<a name="line.158"></a>
<FONT color="green">159</FONT>         */<a name="line.159"></a>
<FONT color="green">160</FONT>        private static final int PAD_LIMIT = 8192;<a name="line.160"></a>
<FONT color="green">161</FONT>    <a name="line.161"></a>
<FONT color="green">162</FONT>        /**<a name="line.162"></a>
<FONT color="green">163</FONT>         * &lt;p&gt;&lt;code&gt;StringUtils&lt;/code&gt; instances should NOT be constructed in<a name="line.163"></a>
<FONT color="green">164</FONT>         * standard programming. Instead, the class should be used as<a name="line.164"></a>
<FONT color="green">165</FONT>         * &lt;code&gt;StringUtils.trim(" foo ");&lt;/code&gt;.&lt;/p&gt;<a name="line.165"></a>
<FONT color="green">166</FONT>         *<a name="line.166"></a>
<FONT color="green">167</FONT>         * &lt;p&gt;This constructor is public to permit tools that require a JavaBean<a name="line.167"></a>
<FONT color="green">168</FONT>         * instance to operate.&lt;/p&gt;<a name="line.168"></a>
<FONT color="green">169</FONT>         */<a name="line.169"></a>
<FONT color="green">170</FONT>        public StringUtils() {<a name="line.170"></a>
<FONT color="green">171</FONT>            super();<a name="line.171"></a>
<FONT color="green">172</FONT>        }<a name="line.172"></a>
<FONT color="green">173</FONT>    <a name="line.173"></a>
<FONT color="green">174</FONT>        // Empty checks<a name="line.174"></a>
<FONT color="green">175</FONT>        //-----------------------------------------------------------------------<a name="line.175"></a>
<FONT color="green">176</FONT>        /**<a name="line.176"></a>
<FONT color="green">177</FONT>         * &lt;p&gt;Checks if a String is empty ("") or null.&lt;/p&gt;<a name="line.177"></a>
<FONT color="green">178</FONT>         *<a name="line.178"></a>
<FONT color="green">179</FONT>         * &lt;pre&gt;<a name="line.179"></a>
<FONT color="green">180</FONT>         * StringUtils.isEmpty(null)      = true<a name="line.180"></a>
<FONT color="green">181</FONT>         * StringUtils.isEmpty("")        = true<a name="line.181"></a>
<FONT color="green">182</FONT>         * StringUtils.isEmpty(" ")       = false<a name="line.182"></a>
<FONT color="green">183</FONT>         * StringUtils.isEmpty("bob")     = false<a name="line.183"></a>
<FONT color="green">184</FONT>         * StringUtils.isEmpty("  bob  ") = false<a name="line.184"></a>
<FONT color="green">185</FONT>         * &lt;/pre&gt;<a name="line.185"></a>
<FONT color="green">186</FONT>         *<a name="line.186"></a>
<FONT color="green">187</FONT>         * &lt;p&gt;NOTE: This method changed in Lang version 2.0.<a name="line.187"></a>
<FONT color="green">188</FONT>         * It no longer trims the String.<a name="line.188"></a>
<FONT color="green">189</FONT>         * That functionality is available in isBlank().&lt;/p&gt;<a name="line.189"></a>
<FONT color="green">190</FONT>         *<a name="line.190"></a>
<FONT color="green">191</FONT>         * @param str  the String to check, may be null<a name="line.191"></a>
<FONT color="green">192</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String is empty or null<a name="line.192"></a>
<FONT color="green">193</FONT>         */<a name="line.193"></a>
<FONT color="green">194</FONT>        public static boolean isEmpty(String str) {<a name="line.194"></a>
<FONT color="green">195</FONT>            return str == null || str.length() == 0;<a name="line.195"></a>
<FONT color="green">196</FONT>        }<a name="line.196"></a>
<FONT color="green">197</FONT>    <a name="line.197"></a>
<FONT color="green">198</FONT>        /**<a name="line.198"></a>
<FONT color="green">199</FONT>         * &lt;p&gt;Checks if a String is not empty ("") and not null.&lt;/p&gt;<a name="line.199"></a>
<FONT color="green">200</FONT>         *<a name="line.200"></a>
<FONT color="green">201</FONT>         * &lt;pre&gt;<a name="line.201"></a>
<FONT color="green">202</FONT>         * StringUtils.isNotEmpty(null)      = false<a name="line.202"></a>
<FONT color="green">203</FONT>         * StringUtils.isNotEmpty("")        = false<a name="line.203"></a>
<FONT color="green">204</FONT>         * StringUtils.isNotEmpty(" ")       = true<a name="line.204"></a>
<FONT color="green">205</FONT>         * StringUtils.isNotEmpty("bob")     = true<a name="line.205"></a>
<FONT color="green">206</FONT>         * StringUtils.isNotEmpty("  bob  ") = true<a name="line.206"></a>
<FONT color="green">207</FONT>         * &lt;/pre&gt;<a name="line.207"></a>
<FONT color="green">208</FONT>         *<a name="line.208"></a>
<FONT color="green">209</FONT>         * @param str  the String to check, may be null<a name="line.209"></a>
<FONT color="green">210</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String is not empty and not null<a name="line.210"></a>
<FONT color="green">211</FONT>         */<a name="line.211"></a>
<FONT color="green">212</FONT>        public static boolean isNotEmpty(String str) {<a name="line.212"></a>
<FONT color="green">213</FONT>            return !StringUtils.isEmpty(str);<a name="line.213"></a>
<FONT color="green">214</FONT>        }<a name="line.214"></a>
<FONT color="green">215</FONT>    <a name="line.215"></a>
<FONT color="green">216</FONT>        /**<a name="line.216"></a>
<FONT color="green">217</FONT>         * &lt;p&gt;Checks if a String is whitespace, empty ("") or null.&lt;/p&gt;<a name="line.217"></a>
<FONT color="green">218</FONT>         *<a name="line.218"></a>
<FONT color="green">219</FONT>         * &lt;pre&gt;<a name="line.219"></a>
<FONT color="green">220</FONT>         * StringUtils.isBlank(null)      = true<a name="line.220"></a>
<FONT color="green">221</FONT>         * StringUtils.isBlank("")        = true<a name="line.221"></a>
<FONT color="green">222</FONT>         * StringUtils.isBlank(" ")       = true<a name="line.222"></a>
<FONT color="green">223</FONT>         * StringUtils.isBlank("bob")     = false<a name="line.223"></a>
<FONT color="green">224</FONT>         * StringUtils.isBlank("  bob  ") = false<a name="line.224"></a>
<FONT color="green">225</FONT>         * &lt;/pre&gt;<a name="line.225"></a>
<FONT color="green">226</FONT>         *<a name="line.226"></a>
<FONT color="green">227</FONT>         * @param str  the String to check, may be null<a name="line.227"></a>
<FONT color="green">228</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String is null, empty or whitespace<a name="line.228"></a>
<FONT color="green">229</FONT>         * @since 2.0<a name="line.229"></a>
<FONT color="green">230</FONT>         */<a name="line.230"></a>
<FONT color="green">231</FONT>        public static boolean isBlank(String str) {<a name="line.231"></a>
<FONT color="green">232</FONT>            int strLen;<a name="line.232"></a>
<FONT color="green">233</FONT>            if (str == null || (strLen = str.length()) == 0) {<a name="line.233"></a>
<FONT color="green">234</FONT>                return true;<a name="line.234"></a>
<FONT color="green">235</FONT>            }<a name="line.235"></a>
<FONT color="green">236</FONT>            for (int i = 0; i &lt; strLen; i++) {<a name="line.236"></a>
<FONT color="green">237</FONT>                if ((Character.isWhitespace(str.charAt(i)) == false)) {<a name="line.237"></a>
<FONT color="green">238</FONT>                    return false;<a name="line.238"></a>
<FONT color="green">239</FONT>                }<a name="line.239"></a>
<FONT color="green">240</FONT>            }<a name="line.240"></a>
<FONT color="green">241</FONT>            return true;<a name="line.241"></a>
<FONT color="green">242</FONT>        }<a name="line.242"></a>
<FONT color="green">243</FONT>    <a name="line.243"></a>
<FONT color="green">244</FONT>        /**<a name="line.244"></a>
<FONT color="green">245</FONT>         * &lt;p&gt;Checks if a String is not empty (""), not null and not whitespace only.&lt;/p&gt;<a name="line.245"></a>
<FONT color="green">246</FONT>         *<a name="line.246"></a>
<FONT color="green">247</FONT>         * &lt;pre&gt;<a name="line.247"></a>
<FONT color="green">248</FONT>         * StringUtils.isNotBlank(null)      = false<a name="line.248"></a>
<FONT color="green">249</FONT>         * StringUtils.isNotBlank("")        = false<a name="line.249"></a>
<FONT color="green">250</FONT>         * StringUtils.isNotBlank(" ")       = false<a name="line.250"></a>
<FONT color="green">251</FONT>         * StringUtils.isNotBlank("bob")     = true<a name="line.251"></a>
<FONT color="green">252</FONT>         * StringUtils.isNotBlank("  bob  ") = true<a name="line.252"></a>
<FONT color="green">253</FONT>         * &lt;/pre&gt;<a name="line.253"></a>
<FONT color="green">254</FONT>         *<a name="line.254"></a>
<FONT color="green">255</FONT>         * @param str  the String to check, may be null<a name="line.255"></a>
<FONT color="green">256</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String is<a name="line.256"></a>
<FONT color="green">257</FONT>         *  not empty and not null and not whitespace<a name="line.257"></a>
<FONT color="green">258</FONT>         * @since 2.0<a name="line.258"></a>
<FONT color="green">259</FONT>         */<a name="line.259"></a>
<FONT color="green">260</FONT>        public static boolean isNotBlank(String str) {<a name="line.260"></a>
<FONT color="green">261</FONT>            return !StringUtils.isBlank(str);<a name="line.261"></a>
<FONT color="green">262</FONT>        }<a name="line.262"></a>
<FONT color="green">263</FONT>    <a name="line.263"></a>
<FONT color="green">264</FONT>        // Trim<a name="line.264"></a>
<FONT color="green">265</FONT>        //-----------------------------------------------------------------------<a name="line.265"></a>
<FONT color="green">266</FONT>        /**<a name="line.266"></a>
<FONT color="green">267</FONT>         * &lt;p&gt;Removes control characters (char &amp;lt;= 32) from both<a name="line.267"></a>
<FONT color="green">268</FONT>         * ends of this String, handling &lt;code&gt;null&lt;/code&gt; by returning<a name="line.268"></a>
<FONT color="green">269</FONT>         * an empty String ("").&lt;/p&gt;<a name="line.269"></a>
<FONT color="green">270</FONT>         *<a name="line.270"></a>
<FONT color="green">271</FONT>         * &lt;pre&gt;<a name="line.271"></a>
<FONT color="green">272</FONT>         * StringUtils.clean(null)          = ""<a name="line.272"></a>
<FONT color="green">273</FONT>         * StringUtils.clean("")            = ""<a name="line.273"></a>
<FONT color="green">274</FONT>         * StringUtils.clean("abc")         = "abc"<a name="line.274"></a>
<FONT color="green">275</FONT>         * StringUtils.clean("    abc    ") = "abc"<a name="line.275"></a>
<FONT color="green">276</FONT>         * StringUtils.clean("     ")       = ""<a name="line.276"></a>
<FONT color="green">277</FONT>         * &lt;/pre&gt;<a name="line.277"></a>
<FONT color="green">278</FONT>         *<a name="line.278"></a>
<FONT color="green">279</FONT>         * @see java.lang.String#trim()<a name="line.279"></a>
<FONT color="green">280</FONT>         * @param str  the String to clean, may be null<a name="line.280"></a>
<FONT color="green">281</FONT>         * @return the trimmed text, never &lt;code&gt;null&lt;/code&gt;<a name="line.281"></a>
<FONT color="green">282</FONT>         * @deprecated Use the clearer named {@link #trimToEmpty(String)}.<a name="line.282"></a>
<FONT color="green">283</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.283"></a>
<FONT color="green">284</FONT>         */<a name="line.284"></a>
<FONT color="green">285</FONT>        public static String clean(String str) {<a name="line.285"></a>
<FONT color="green">286</FONT>            return str == null ? EMPTY : str.trim();<a name="line.286"></a>
<FONT color="green">287</FONT>        }<a name="line.287"></a>
<FONT color="green">288</FONT>    <a name="line.288"></a>
<FONT color="green">289</FONT>        /**<a name="line.289"></a>
<FONT color="green">290</FONT>         * &lt;p&gt;Removes control characters (char &amp;lt;= 32) from both<a name="line.290"></a>
<FONT color="green">291</FONT>         * ends of this String, handling &lt;code&gt;null&lt;/code&gt; by returning<a name="line.291"></a>
<FONT color="green">292</FONT>         * &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.292"></a>
<FONT color="green">293</FONT>         *<a name="line.293"></a>
<FONT color="green">294</FONT>         * &lt;p&gt;The String is trimmed using {@link String#trim()}.<a name="line.294"></a>
<FONT color="green">295</FONT>         * Trim removes start and end characters &amp;lt;= 32.<a name="line.295"></a>
<FONT color="green">296</FONT>         * To strip whitespace use {@link #strip(String)}.&lt;/p&gt;<a name="line.296"></a>
<FONT color="green">297</FONT>         *<a name="line.297"></a>
<FONT color="green">298</FONT>         * &lt;p&gt;To trim your choice of characters, use the<a name="line.298"></a>
<FONT color="green">299</FONT>         * {@link #strip(String, String)} methods.&lt;/p&gt;<a name="line.299"></a>
<FONT color="green">300</FONT>         *<a name="line.300"></a>
<FONT color="green">301</FONT>         * &lt;pre&gt;<a name="line.301"></a>
<FONT color="green">302</FONT>         * StringUtils.trim(null)          = null<a name="line.302"></a>
<FONT color="green">303</FONT>         * StringUtils.trim("")            = ""<a name="line.303"></a>
<FONT color="green">304</FONT>         * StringUtils.trim("     ")       = ""<a name="line.304"></a>
<FONT color="green">305</FONT>         * StringUtils.trim("abc")         = "abc"<a name="line.305"></a>
<FONT color="green">306</FONT>         * StringUtils.trim("    abc    ") = "abc"<a name="line.306"></a>
<FONT color="green">307</FONT>         * &lt;/pre&gt;<a name="line.307"></a>
<FONT color="green">308</FONT>         *<a name="line.308"></a>
<FONT color="green">309</FONT>         * @param str  the String to be trimmed, may be null<a name="line.309"></a>
<FONT color="green">310</FONT>         * @return the trimmed string, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.310"></a>
<FONT color="green">311</FONT>         */<a name="line.311"></a>
<FONT color="green">312</FONT>        public static String trim(String str) {<a name="line.312"></a>
<FONT color="green">313</FONT>            return str == null ? null : str.trim();<a name="line.313"></a>
<FONT color="green">314</FONT>        }<a name="line.314"></a>
<FONT color="green">315</FONT>    <a name="line.315"></a>
<FONT color="green">316</FONT>        /**<a name="line.316"></a>
<FONT color="green">317</FONT>         * &lt;p&gt;Removes control characters (char &amp;lt;= 32) from both<a name="line.317"></a>
<FONT color="green">318</FONT>         * ends of this String returning &lt;code&gt;null&lt;/code&gt; if the String is<a name="line.318"></a>
<FONT color="green">319</FONT>         * empty ("") after the trim or if it is &lt;code&gt;null&lt;/code&gt;.<a name="line.319"></a>
<FONT color="green">320</FONT>         *<a name="line.320"></a>
<FONT color="green">321</FONT>         * &lt;p&gt;The String is trimmed using {@link String#trim()}.<a name="line.321"></a>
<FONT color="green">322</FONT>         * Trim removes start and end characters &amp;lt;= 32.<a name="line.322"></a>
<FONT color="green">323</FONT>         * To strip whitespace use {@link #stripToNull(String)}.&lt;/p&gt;<a name="line.323"></a>
<FONT color="green">324</FONT>         *<a name="line.324"></a>
<FONT color="green">325</FONT>         * &lt;pre&gt;<a name="line.325"></a>
<FONT color="green">326</FONT>         * StringUtils.trimToNull(null)          = null<a name="line.326"></a>
<FONT color="green">327</FONT>         * StringUtils.trimToNull("")            = null<a name="line.327"></a>
<FONT color="green">328</FONT>         * StringUtils.trimToNull("     ")       = null<a name="line.328"></a>
<FONT color="green">329</FONT>         * StringUtils.trimToNull("abc")         = "abc"<a name="line.329"></a>
<FONT color="green">330</FONT>         * StringUtils.trimToNull("    abc    ") = "abc"<a name="line.330"></a>
<FONT color="green">331</FONT>         * &lt;/pre&gt;<a name="line.331"></a>
<FONT color="green">332</FONT>         *<a name="line.332"></a>
<FONT color="green">333</FONT>         * @param str  the String to be trimmed, may be null<a name="line.333"></a>
<FONT color="green">334</FONT>         * @return the trimmed String,<a name="line.334"></a>
<FONT color="green">335</FONT>         *  &lt;code&gt;null&lt;/code&gt; if only chars &amp;lt;= 32, empty or null String input<a name="line.335"></a>
<FONT color="green">336</FONT>         * @since 2.0<a name="line.336"></a>
<FONT color="green">337</FONT>         */<a name="line.337"></a>
<FONT color="green">338</FONT>        public static String trimToNull(String str) {<a name="line.338"></a>
<FONT color="green">339</FONT>            String ts = trim(str);<a name="line.339"></a>
<FONT color="green">340</FONT>            return isEmpty(ts) ? null : ts;<a name="line.340"></a>
<FONT color="green">341</FONT>        }<a name="line.341"></a>
<FONT color="green">342</FONT>    <a name="line.342"></a>
<FONT color="green">343</FONT>        /**<a name="line.343"></a>
<FONT color="green">344</FONT>         * &lt;p&gt;Removes control characters (char &amp;lt;= 32) from both<a name="line.344"></a>
<FONT color="green">345</FONT>         * ends of this String returning an empty String ("") if the String<a name="line.345"></a>
<FONT color="green">346</FONT>         * is empty ("") after the trim or if it is &lt;code&gt;null&lt;/code&gt;.<a name="line.346"></a>
<FONT color="green">347</FONT>         *<a name="line.347"></a>
<FONT color="green">348</FONT>         * &lt;p&gt;The String is trimmed using {@link String#trim()}.<a name="line.348"></a>
<FONT color="green">349</FONT>         * Trim removes start and end characters &amp;lt;= 32.<a name="line.349"></a>
<FONT color="green">350</FONT>         * To strip whitespace use {@link #stripToEmpty(String)}.&lt;/p&gt;<a name="line.350"></a>
<FONT color="green">351</FONT>         *<a name="line.351"></a>
<FONT color="green">352</FONT>         * &lt;pre&gt;<a name="line.352"></a>
<FONT color="green">353</FONT>         * StringUtils.trimToEmpty(null)          = ""<a name="line.353"></a>
<FONT color="green">354</FONT>         * StringUtils.trimToEmpty("")            = ""<a name="line.354"></a>
<FONT color="green">355</FONT>         * StringUtils.trimToEmpty("     ")       = ""<a name="line.355"></a>
<FONT color="green">356</FONT>         * StringUtils.trimToEmpty("abc")         = "abc"<a name="line.356"></a>
<FONT color="green">357</FONT>         * StringUtils.trimToEmpty("    abc    ") = "abc"<a name="line.357"></a>
<FONT color="green">358</FONT>         * &lt;/pre&gt;<a name="line.358"></a>
<FONT color="green">359</FONT>         *<a name="line.359"></a>
<FONT color="green">360</FONT>         * @param str  the String to be trimmed, may be null<a name="line.360"></a>
<FONT color="green">361</FONT>         * @return the trimmed String, or an empty String if &lt;code&gt;null&lt;/code&gt; input<a name="line.361"></a>
<FONT color="green">362</FONT>         * @since 2.0<a name="line.362"></a>
<FONT color="green">363</FONT>         */<a name="line.363"></a>
<FONT color="green">364</FONT>        public static String trimToEmpty(String str) {<a name="line.364"></a>
<FONT color="green">365</FONT>            return str == null ? EMPTY : str.trim();<a name="line.365"></a>
<FONT color="green">366</FONT>        }<a name="line.366"></a>
<FONT color="green">367</FONT>    <a name="line.367"></a>
<FONT color="green">368</FONT>        // Stripping<a name="line.368"></a>
<FONT color="green">369</FONT>        //-----------------------------------------------------------------------<a name="line.369"></a>
<FONT color="green">370</FONT>        /**<a name="line.370"></a>
<FONT color="green">371</FONT>         * &lt;p&gt;Strips whitespace from the start and end of a String.&lt;/p&gt;<a name="line.371"></a>
<FONT color="green">372</FONT>         *<a name="line.372"></a>
<FONT color="green">373</FONT>         * &lt;p&gt;This is similar to {@link #trim(String)} but removes whitespace.<a name="line.373"></a>
<FONT color="green">374</FONT>         * Whitespace is defined by {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.374"></a>
<FONT color="green">375</FONT>         *<a name="line.375"></a>
<FONT color="green">376</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.376"></a>
<FONT color="green">377</FONT>         *<a name="line.377"></a>
<FONT color="green">378</FONT>         * &lt;pre&gt;<a name="line.378"></a>
<FONT color="green">379</FONT>         * StringUtils.strip(null)     = null<a name="line.379"></a>
<FONT color="green">380</FONT>         * StringUtils.strip("")       = ""<a name="line.380"></a>
<FONT color="green">381</FONT>         * StringUtils.strip("   ")    = ""<a name="line.381"></a>
<FONT color="green">382</FONT>         * StringUtils.strip("abc")    = "abc"<a name="line.382"></a>
<FONT color="green">383</FONT>         * StringUtils.strip("  abc")  = "abc"<a name="line.383"></a>
<FONT color="green">384</FONT>         * StringUtils.strip("abc  ")  = "abc"<a name="line.384"></a>
<FONT color="green">385</FONT>         * StringUtils.strip(" abc ")  = "abc"<a name="line.385"></a>
<FONT color="green">386</FONT>         * StringUtils.strip(" ab c ") = "ab c"<a name="line.386"></a>
<FONT color="green">387</FONT>         * &lt;/pre&gt;<a name="line.387"></a>
<FONT color="green">388</FONT>         *<a name="line.388"></a>
<FONT color="green">389</FONT>         * @param str  the String to remove whitespace from, may be null<a name="line.389"></a>
<FONT color="green">390</FONT>         * @return the stripped String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.390"></a>
<FONT color="green">391</FONT>         */<a name="line.391"></a>
<FONT color="green">392</FONT>        public static String strip(String str) {<a name="line.392"></a>
<FONT color="green">393</FONT>            return strip(str, null);<a name="line.393"></a>
<FONT color="green">394</FONT>        }<a name="line.394"></a>
<FONT color="green">395</FONT>    <a name="line.395"></a>
<FONT color="green">396</FONT>        /**<a name="line.396"></a>
<FONT color="green">397</FONT>         * &lt;p&gt;Strips whitespace from the start and end of a String  returning<a name="line.397"></a>
<FONT color="green">398</FONT>         * &lt;code&gt;null&lt;/code&gt; if the String is empty ("") after the strip.&lt;/p&gt;<a name="line.398"></a>
<FONT color="green">399</FONT>         *<a name="line.399"></a>
<FONT color="green">400</FONT>         * &lt;p&gt;This is similar to {@link #trimToNull(String)} but removes whitespace.<a name="line.400"></a>
<FONT color="green">401</FONT>         * Whitespace is defined by {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.401"></a>
<FONT color="green">402</FONT>         *<a name="line.402"></a>
<FONT color="green">403</FONT>         * &lt;pre&gt;<a name="line.403"></a>
<FONT color="green">404</FONT>         * StringUtils.stripToNull(null)     = null<a name="line.404"></a>
<FONT color="green">405</FONT>         * StringUtils.stripToNull("")       = null<a name="line.405"></a>
<FONT color="green">406</FONT>         * StringUtils.stripToNull("   ")    = null<a name="line.406"></a>
<FONT color="green">407</FONT>         * StringUtils.stripToNull("abc")    = "abc"<a name="line.407"></a>
<FONT color="green">408</FONT>         * StringUtils.stripToNull("  abc")  = "abc"<a name="line.408"></a>
<FONT color="green">409</FONT>         * StringUtils.stripToNull("abc  ")  = "abc"<a name="line.409"></a>
<FONT color="green">410</FONT>         * StringUtils.stripToNull(" abc ")  = "abc"<a name="line.410"></a>
<FONT color="green">411</FONT>         * StringUtils.stripToNull(" ab c ") = "ab c"<a name="line.411"></a>
<FONT color="green">412</FONT>         * &lt;/pre&gt;<a name="line.412"></a>
<FONT color="green">413</FONT>         *<a name="line.413"></a>
<FONT color="green">414</FONT>         * @param str  the String to be stripped, may be null<a name="line.414"></a>
<FONT color="green">415</FONT>         * @return the stripped String,<a name="line.415"></a>
<FONT color="green">416</FONT>         *  &lt;code&gt;null&lt;/code&gt; if whitespace, empty or null String input<a name="line.416"></a>
<FONT color="green">417</FONT>         * @since 2.0<a name="line.417"></a>
<FONT color="green">418</FONT>         */<a name="line.418"></a>
<FONT color="green">419</FONT>        public static String stripToNull(String str) {<a name="line.419"></a>
<FONT color="green">420</FONT>            if (str == null) {<a name="line.420"></a>
<FONT color="green">421</FONT>                return null;<a name="line.421"></a>
<FONT color="green">422</FONT>            }<a name="line.422"></a>
<FONT color="green">423</FONT>            str = strip(str, null);<a name="line.423"></a>
<FONT color="green">424</FONT>            return str.length() == 0 ? null : str;<a name="line.424"></a>
<FONT color="green">425</FONT>        }<a name="line.425"></a>
<FONT color="green">426</FONT>    <a name="line.426"></a>
<FONT color="green">427</FONT>        /**<a name="line.427"></a>
<FONT color="green">428</FONT>         * &lt;p&gt;Strips whitespace from the start and end of a String  returning<a name="line.428"></a>
<FONT color="green">429</FONT>         * an empty String if &lt;code&gt;null&lt;/code&gt; input.&lt;/p&gt;<a name="line.429"></a>
<FONT color="green">430</FONT>         *<a name="line.430"></a>
<FONT color="green">431</FONT>         * &lt;p&gt;This is similar to {@link #trimToEmpty(String)} but removes whitespace.<a name="line.431"></a>
<FONT color="green">432</FONT>         * Whitespace is defined by {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.432"></a>
<FONT color="green">433</FONT>         *<a name="line.433"></a>
<FONT color="green">434</FONT>         * &lt;pre&gt;<a name="line.434"></a>
<FONT color="green">435</FONT>         * StringUtils.stripToEmpty(null)     = ""<a name="line.435"></a>
<FONT color="green">436</FONT>         * StringUtils.stripToEmpty("")       = ""<a name="line.436"></a>
<FONT color="green">437</FONT>         * StringUtils.stripToEmpty("   ")    = ""<a name="line.437"></a>
<FONT color="green">438</FONT>         * StringUtils.stripToEmpty("abc")    = "abc"<a name="line.438"></a>
<FONT color="green">439</FONT>         * StringUtils.stripToEmpty("  abc")  = "abc"<a name="line.439"></a>
<FONT color="green">440</FONT>         * StringUtils.stripToEmpty("abc  ")  = "abc"<a name="line.440"></a>
<FONT color="green">441</FONT>         * StringUtils.stripToEmpty(" abc ")  = "abc"<a name="line.441"></a>
<FONT color="green">442</FONT>         * StringUtils.stripToEmpty(" ab c ") = "ab c"<a name="line.442"></a>
<FONT color="green">443</FONT>         * &lt;/pre&gt;<a name="line.443"></a>
<FONT color="green">444</FONT>         *<a name="line.444"></a>
<FONT color="green">445</FONT>         * @param str  the String to be stripped, may be null<a name="line.445"></a>
<FONT color="green">446</FONT>         * @return the trimmed String, or an empty String if &lt;code&gt;null&lt;/code&gt; input<a name="line.446"></a>
<FONT color="green">447</FONT>         * @since 2.0<a name="line.447"></a>
<FONT color="green">448</FONT>         */<a name="line.448"></a>
<FONT color="green">449</FONT>        public static String stripToEmpty(String str) {<a name="line.449"></a>
<FONT color="green">450</FONT>            return str == null ? EMPTY : strip(str, null);<a name="line.450"></a>
<FONT color="green">451</FONT>        }<a name="line.451"></a>
<FONT color="green">452</FONT>    <a name="line.452"></a>
<FONT color="green">453</FONT>        /**<a name="line.453"></a>
<FONT color="green">454</FONT>         * &lt;p&gt;Strips any of a set of characters from the start and end of a String.<a name="line.454"></a>
<FONT color="green">455</FONT>         * This is similar to {@link String#trim()} but allows the characters<a name="line.455"></a>
<FONT color="green">456</FONT>         * to be stripped to be controlled.&lt;/p&gt;<a name="line.456"></a>
<FONT color="green">457</FONT>         *<a name="line.457"></a>
<FONT color="green">458</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.458"></a>
<FONT color="green">459</FONT>         * An empty string ("") input returns the empty string.&lt;/p&gt;<a name="line.459"></a>
<FONT color="green">460</FONT>         *<a name="line.460"></a>
<FONT color="green">461</FONT>         * &lt;p&gt;If the stripChars String is &lt;code&gt;null&lt;/code&gt;, whitespace is<a name="line.461"></a>
<FONT color="green">462</FONT>         * stripped as defined by {@link Character#isWhitespace(char)}.<a name="line.462"></a>
<FONT color="green">463</FONT>         * Alternatively use {@link #strip(String)}.&lt;/p&gt;<a name="line.463"></a>
<FONT color="green">464</FONT>         *<a name="line.464"></a>
<FONT color="green">465</FONT>         * &lt;pre&gt;<a name="line.465"></a>
<FONT color="green">466</FONT>         * StringUtils.strip(null, *)          = null<a name="line.466"></a>
<FONT color="green">467</FONT>         * StringUtils.strip("", *)            = ""<a name="line.467"></a>
<FONT color="green">468</FONT>         * StringUtils.strip("abc", null)      = "abc"<a name="line.468"></a>
<FONT color="green">469</FONT>         * StringUtils.strip("  abc", null)    = "abc"<a name="line.469"></a>
<FONT color="green">470</FONT>         * StringUtils.strip("abc  ", null)    = "abc"<a name="line.470"></a>
<FONT color="green">471</FONT>         * StringUtils.strip(" abc ", null)    = "abc"<a name="line.471"></a>
<FONT color="green">472</FONT>         * StringUtils.strip("  abcyx", "xyz") = "  abc"<a name="line.472"></a>
<FONT color="green">473</FONT>         * &lt;/pre&gt;<a name="line.473"></a>
<FONT color="green">474</FONT>         *<a name="line.474"></a>
<FONT color="green">475</FONT>         * @param str  the String to remove characters from, may be null<a name="line.475"></a>
<FONT color="green">476</FONT>         * @param stripChars  the characters to remove, null treated as whitespace<a name="line.476"></a>
<FONT color="green">477</FONT>         * @return the stripped String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.477"></a>
<FONT color="green">478</FONT>         */<a name="line.478"></a>
<FONT color="green">479</FONT>        public static String strip(String str, String stripChars) {<a name="line.479"></a>
<FONT color="green">480</FONT>            if (isEmpty(str)) {<a name="line.480"></a>
<FONT color="green">481</FONT>                return str;<a name="line.481"></a>
<FONT color="green">482</FONT>            }<a name="line.482"></a>
<FONT color="green">483</FONT>            str = stripStart(str, stripChars);<a name="line.483"></a>
<FONT color="green">484</FONT>            return stripEnd(str, stripChars);<a name="line.484"></a>
<FONT color="green">485</FONT>        }<a name="line.485"></a>
<FONT color="green">486</FONT>    <a name="line.486"></a>
<FONT color="green">487</FONT>        /**<a name="line.487"></a>
<FONT color="green">488</FONT>         * &lt;p&gt;Strips any of a set of characters from the start of a String.&lt;/p&gt;<a name="line.488"></a>
<FONT color="green">489</FONT>         *<a name="line.489"></a>
<FONT color="green">490</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.490"></a>
<FONT color="green">491</FONT>         * An empty string ("") input returns the empty string.&lt;/p&gt;<a name="line.491"></a>
<FONT color="green">492</FONT>         *<a name="line.492"></a>
<FONT color="green">493</FONT>         * &lt;p&gt;If the stripChars String is &lt;code&gt;null&lt;/code&gt;, whitespace is<a name="line.493"></a>
<FONT color="green">494</FONT>         * stripped as defined by {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.494"></a>
<FONT color="green">495</FONT>         *<a name="line.495"></a>
<FONT color="green">496</FONT>         * &lt;pre&gt;<a name="line.496"></a>
<FONT color="green">497</FONT>         * StringUtils.stripStart(null, *)          = null<a name="line.497"></a>
<FONT color="green">498</FONT>         * StringUtils.stripStart("", *)            = ""<a name="line.498"></a>
<FONT color="green">499</FONT>         * StringUtils.stripStart("abc", "")        = "abc"<a name="line.499"></a>
<FONT color="green">500</FONT>         * StringUtils.stripStart("abc", null)      = "abc"<a name="line.500"></a>
<FONT color="green">501</FONT>         * StringUtils.stripStart("  abc", null)    = "abc"<a name="line.501"></a>
<FONT color="green">502</FONT>         * StringUtils.stripStart("abc  ", null)    = "abc  "<a name="line.502"></a>
<FONT color="green">503</FONT>         * StringUtils.stripStart(" abc ", null)    = "abc "<a name="line.503"></a>
<FONT color="green">504</FONT>         * StringUtils.stripStart("yxabc  ", "xyz") = "abc  "<a name="line.504"></a>
<FONT color="green">505</FONT>         * &lt;/pre&gt;<a name="line.505"></a>
<FONT color="green">506</FONT>         *<a name="line.506"></a>
<FONT color="green">507</FONT>         * @param str  the String to remove characters from, may be null<a name="line.507"></a>
<FONT color="green">508</FONT>         * @param stripChars  the characters to remove, null treated as whitespace<a name="line.508"></a>
<FONT color="green">509</FONT>         * @return the stripped String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.509"></a>
<FONT color="green">510</FONT>         */<a name="line.510"></a>
<FONT color="green">511</FONT>        public static String stripStart(String str, String stripChars) {<a name="line.511"></a>
<FONT color="green">512</FONT>            int strLen;<a name="line.512"></a>
<FONT color="green">513</FONT>            if (str == null || (strLen = str.length()) == 0) {<a name="line.513"></a>
<FONT color="green">514</FONT>                return str;<a name="line.514"></a>
<FONT color="green">515</FONT>            }<a name="line.515"></a>
<FONT color="green">516</FONT>            int start = 0;<a name="line.516"></a>
<FONT color="green">517</FONT>            if (stripChars == null) {<a name="line.517"></a>
<FONT color="green">518</FONT>                while ((start != strLen) &amp;&amp; Character.isWhitespace(str.charAt(start))) {<a name="line.518"></a>
<FONT color="green">519</FONT>                    start++;<a name="line.519"></a>
<FONT color="green">520</FONT>                }<a name="line.520"></a>
<FONT color="green">521</FONT>            } else if (stripChars.length() == 0) {<a name="line.521"></a>
<FONT color="green">522</FONT>                return str;<a name="line.522"></a>
<FONT color="green">523</FONT>            } else {<a name="line.523"></a>
<FONT color="green">524</FONT>                while ((start != strLen) &amp;&amp; (stripChars.indexOf(str.charAt(start)) != INDEX_NOT_FOUND)) {<a name="line.524"></a>
<FONT color="green">525</FONT>                    start++;<a name="line.525"></a>
<FONT color="green">526</FONT>                }<a name="line.526"></a>
<FONT color="green">527</FONT>            }<a name="line.527"></a>
<FONT color="green">528</FONT>            return str.substring(start);<a name="line.528"></a>
<FONT color="green">529</FONT>        }<a name="line.529"></a>
<FONT color="green">530</FONT>    <a name="line.530"></a>
<FONT color="green">531</FONT>        /**<a name="line.531"></a>
<FONT color="green">532</FONT>         * &lt;p&gt;Strips any of a set of characters from the end of a String.&lt;/p&gt;<a name="line.532"></a>
<FONT color="green">533</FONT>         *<a name="line.533"></a>
<FONT color="green">534</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.534"></a>
<FONT color="green">535</FONT>         * An empty string ("") input returns the empty string.&lt;/p&gt;<a name="line.535"></a>
<FONT color="green">536</FONT>         *<a name="line.536"></a>
<FONT color="green">537</FONT>         * &lt;p&gt;If the stripChars String is &lt;code&gt;null&lt;/code&gt;, whitespace is<a name="line.537"></a>
<FONT color="green">538</FONT>         * stripped as defined by {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.538"></a>
<FONT color="green">539</FONT>         *<a name="line.539"></a>
<FONT color="green">540</FONT>         * &lt;pre&gt;<a name="line.540"></a>
<FONT color="green">541</FONT>         * StringUtils.stripEnd(null, *)          = null<a name="line.541"></a>
<FONT color="green">542</FONT>         * StringUtils.stripEnd("", *)            = ""<a name="line.542"></a>
<FONT color="green">543</FONT>         * StringUtils.stripEnd("abc", "")        = "abc"<a name="line.543"></a>
<FONT color="green">544</FONT>         * StringUtils.stripEnd("abc", null)      = "abc"<a name="line.544"></a>
<FONT color="green">545</FONT>         * StringUtils.stripEnd("  abc", null)    = "  abc"<a name="line.545"></a>
<FONT color="green">546</FONT>         * StringUtils.stripEnd("abc  ", null)    = "abc"<a name="line.546"></a>
<FONT color="green">547</FONT>         * StringUtils.stripEnd(" abc ", null)    = " abc"<a name="line.547"></a>
<FONT color="green">548</FONT>         * StringUtils.stripEnd("  abcyx", "xyz") = "  abc"<a name="line.548"></a>
<FONT color="green">549</FONT>         * StringUtils.stripEnd("120.00", ".0")   = "12"<a name="line.549"></a>
<FONT color="green">550</FONT>         * &lt;/pre&gt;<a name="line.550"></a>
<FONT color="green">551</FONT>         *<a name="line.551"></a>
<FONT color="green">552</FONT>         * @param str  the String to remove characters from, may be null<a name="line.552"></a>
<FONT color="green">553</FONT>         * @param stripChars  the set of characters to remove, null treated as whitespace<a name="line.553"></a>
<FONT color="green">554</FONT>         * @return the stripped String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.554"></a>
<FONT color="green">555</FONT>         */<a name="line.555"></a>
<FONT color="green">556</FONT>        public static String stripEnd(String str, String stripChars) {<a name="line.556"></a>
<FONT color="green">557</FONT>            int end;<a name="line.557"></a>
<FONT color="green">558</FONT>            if (str == null || (end = str.length()) == 0) {<a name="line.558"></a>
<FONT color="green">559</FONT>                return str;<a name="line.559"></a>
<FONT color="green">560</FONT>            }<a name="line.560"></a>
<FONT color="green">561</FONT>    <a name="line.561"></a>
<FONT color="green">562</FONT>            if (stripChars == null) {<a name="line.562"></a>
<FONT color="green">563</FONT>                while ((end != 0) &amp;&amp; Character.isWhitespace(str.charAt(end - 1))) {<a name="line.563"></a>
<FONT color="green">564</FONT>                    end--;<a name="line.564"></a>
<FONT color="green">565</FONT>                }<a name="line.565"></a>
<FONT color="green">566</FONT>            } else if (stripChars.length() == 0) {<a name="line.566"></a>
<FONT color="green">567</FONT>                return str;<a name="line.567"></a>
<FONT color="green">568</FONT>            } else {<a name="line.568"></a>
<FONT color="green">569</FONT>                while ((end != 0) &amp;&amp; (stripChars.indexOf(str.charAt(end - 1)) != INDEX_NOT_FOUND)) {<a name="line.569"></a>
<FONT color="green">570</FONT>                    end--;<a name="line.570"></a>
<FONT color="green">571</FONT>                }<a name="line.571"></a>
<FONT color="green">572</FONT>            }<a name="line.572"></a>
<FONT color="green">573</FONT>            return str.substring(0, end);<a name="line.573"></a>
<FONT color="green">574</FONT>        }<a name="line.574"></a>
<FONT color="green">575</FONT>    <a name="line.575"></a>
<FONT color="green">576</FONT>        // StripAll<a name="line.576"></a>
<FONT color="green">577</FONT>        //-----------------------------------------------------------------------<a name="line.577"></a>
<FONT color="green">578</FONT>        /**<a name="line.578"></a>
<FONT color="green">579</FONT>         * &lt;p&gt;Strips whitespace from the start and end of every String in an array.<a name="line.579"></a>
<FONT color="green">580</FONT>         * Whitespace is defined by {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.580"></a>
<FONT color="green">581</FONT>         *<a name="line.581"></a>
<FONT color="green">582</FONT>         * &lt;p&gt;A new array is returned each time, except for length zero.<a name="line.582"></a>
<FONT color="green">583</FONT>         * A &lt;code&gt;null&lt;/code&gt; array will return &lt;code&gt;null&lt;/code&gt;.<a name="line.583"></a>
<FONT color="green">584</FONT>         * An empty array will return itself.<a name="line.584"></a>
<FONT color="green">585</FONT>         * A &lt;code&gt;null&lt;/code&gt; array entry will be ignored.&lt;/p&gt;<a name="line.585"></a>
<FONT color="green">586</FONT>         *<a name="line.586"></a>
<FONT color="green">587</FONT>         * &lt;pre&gt;<a name="line.587"></a>
<FONT color="green">588</FONT>         * StringUtils.stripAll(null)             = null<a name="line.588"></a>
<FONT color="green">589</FONT>         * StringUtils.stripAll([])               = []<a name="line.589"></a>
<FONT color="green">590</FONT>         * StringUtils.stripAll(["abc", "  abc"]) = ["abc", "abc"]<a name="line.590"></a>
<FONT color="green">591</FONT>         * StringUtils.stripAll(["abc  ", null])  = ["abc", null]<a name="line.591"></a>
<FONT color="green">592</FONT>         * &lt;/pre&gt;<a name="line.592"></a>
<FONT color="green">593</FONT>         *<a name="line.593"></a>
<FONT color="green">594</FONT>         * @param strs  the array to remove whitespace from, may be null<a name="line.594"></a>
<FONT color="green">595</FONT>         * @return the stripped Strings, &lt;code&gt;null&lt;/code&gt; if null array input<a name="line.595"></a>
<FONT color="green">596</FONT>         */<a name="line.596"></a>
<FONT color="green">597</FONT>        public static String[] stripAll(String[] strs) {<a name="line.597"></a>
<FONT color="green">598</FONT>            return stripAll(strs, null);<a name="line.598"></a>
<FONT color="green">599</FONT>        }<a name="line.599"></a>
<FONT color="green">600</FONT>    <a name="line.600"></a>
<FONT color="green">601</FONT>        /**<a name="line.601"></a>
<FONT color="green">602</FONT>         * &lt;p&gt;Strips any of a set of characters from the start and end of every<a name="line.602"></a>
<FONT color="green">603</FONT>         * String in an array.&lt;/p&gt;<a name="line.603"></a>
<FONT color="green">604</FONT>         * Whitespace is defined by {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.604"></a>
<FONT color="green">605</FONT>         *<a name="line.605"></a>
<FONT color="green">606</FONT>         * &lt;p&gt;A new array is returned each time, except for length zero.<a name="line.606"></a>
<FONT color="green">607</FONT>         * A &lt;code&gt;null&lt;/code&gt; array will return &lt;code&gt;null&lt;/code&gt;.<a name="line.607"></a>
<FONT color="green">608</FONT>         * An empty array will return itself.<a name="line.608"></a>
<FONT color="green">609</FONT>         * A &lt;code&gt;null&lt;/code&gt; array entry will be ignored.<a name="line.609"></a>
<FONT color="green">610</FONT>         * A &lt;code&gt;null&lt;/code&gt; stripChars will strip whitespace as defined by<a name="line.610"></a>
<FONT color="green">611</FONT>         * {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.611"></a>
<FONT color="green">612</FONT>         *<a name="line.612"></a>
<FONT color="green">613</FONT>         * &lt;pre&gt;<a name="line.613"></a>
<FONT color="green">614</FONT>         * StringUtils.stripAll(null, *)                = null<a name="line.614"></a>
<FONT color="green">615</FONT>         * StringUtils.stripAll([], *)                  = []<a name="line.615"></a>
<FONT color="green">616</FONT>         * StringUtils.stripAll(["abc", "  abc"], null) = ["abc", "abc"]<a name="line.616"></a>
<FONT color="green">617</FONT>         * StringUtils.stripAll(["abc  ", null], null)  = ["abc", null]<a name="line.617"></a>
<FONT color="green">618</FONT>         * StringUtils.stripAll(["abc  ", null], "yz")  = ["abc  ", null]<a name="line.618"></a>
<FONT color="green">619</FONT>         * StringUtils.stripAll(["yabcz", null], "yz")  = ["abc", null]<a name="line.619"></a>
<FONT color="green">620</FONT>         * &lt;/pre&gt;<a name="line.620"></a>
<FONT color="green">621</FONT>         *<a name="line.621"></a>
<FONT color="green">622</FONT>         * @param strs  the array to remove characters from, may be null<a name="line.622"></a>
<FONT color="green">623</FONT>         * @param stripChars  the characters to remove, null treated as whitespace<a name="line.623"></a>
<FONT color="green">624</FONT>         * @return the stripped Strings, &lt;code&gt;null&lt;/code&gt; if null array input<a name="line.624"></a>
<FONT color="green">625</FONT>         */<a name="line.625"></a>
<FONT color="green">626</FONT>        public static String[] stripAll(String[] strs, String stripChars) {<a name="line.626"></a>
<FONT color="green">627</FONT>            int strsLen;<a name="line.627"></a>
<FONT color="green">628</FONT>            if (strs == null || (strsLen = strs.length) == 0) {<a name="line.628"></a>
<FONT color="green">629</FONT>                return strs;<a name="line.629"></a>
<FONT color="green">630</FONT>            }<a name="line.630"></a>
<FONT color="green">631</FONT>            String[] newArr = new String[strsLen];<a name="line.631"></a>
<FONT color="green">632</FONT>            for (int i = 0; i &lt; strsLen; i++) {<a name="line.632"></a>
<FONT color="green">633</FONT>                newArr[i] = strip(strs[i], stripChars);<a name="line.633"></a>
<FONT color="green">634</FONT>            }<a name="line.634"></a>
<FONT color="green">635</FONT>            return newArr;<a name="line.635"></a>
<FONT color="green">636</FONT>        }<a name="line.636"></a>
<FONT color="green">637</FONT>    <a name="line.637"></a>
<FONT color="green">638</FONT>        // Equals<a name="line.638"></a>
<FONT color="green">639</FONT>        //-----------------------------------------------------------------------<a name="line.639"></a>
<FONT color="green">640</FONT>        /**<a name="line.640"></a>
<FONT color="green">641</FONT>         * &lt;p&gt;Compares two Strings, returning &lt;code&gt;true&lt;/code&gt; if they are equal.&lt;/p&gt;<a name="line.641"></a>
<FONT color="green">642</FONT>         *<a name="line.642"></a>
<FONT color="green">643</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt;s are handled without exceptions. Two &lt;code&gt;null&lt;/code&gt;<a name="line.643"></a>
<FONT color="green">644</FONT>         * references are considered to be equal. The comparison is case sensitive.&lt;/p&gt;<a name="line.644"></a>
<FONT color="green">645</FONT>         *<a name="line.645"></a>
<FONT color="green">646</FONT>         * &lt;pre&gt;<a name="line.646"></a>
<FONT color="green">647</FONT>         * StringUtils.equals(null, null)   = true<a name="line.647"></a>
<FONT color="green">648</FONT>         * StringUtils.equals(null, "abc")  = false<a name="line.648"></a>
<FONT color="green">649</FONT>         * StringUtils.equals("abc", null)  = false<a name="line.649"></a>
<FONT color="green">650</FONT>         * StringUtils.equals("abc", "abc") = true<a name="line.650"></a>
<FONT color="green">651</FONT>         * StringUtils.equals("abc", "ABC") = false<a name="line.651"></a>
<FONT color="green">652</FONT>         * &lt;/pre&gt;<a name="line.652"></a>
<FONT color="green">653</FONT>         *<a name="line.653"></a>
<FONT color="green">654</FONT>         * @see java.lang.String#equals(Object)<a name="line.654"></a>
<FONT color="green">655</FONT>         * @param str1  the first String, may be null<a name="line.655"></a>
<FONT color="green">656</FONT>         * @param str2  the second String, may be null<a name="line.656"></a>
<FONT color="green">657</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the Strings are equal, case sensitive, or<a name="line.657"></a>
<FONT color="green">658</FONT>         *  both &lt;code&gt;null&lt;/code&gt;<a name="line.658"></a>
<FONT color="green">659</FONT>         */<a name="line.659"></a>
<FONT color="green">660</FONT>        public static boolean equals(String str1, String str2) {<a name="line.660"></a>
<FONT color="green">661</FONT>            return str1 == null ? str2 == null : str1.equals(str2);<a name="line.661"></a>
<FONT color="green">662</FONT>        }<a name="line.662"></a>
<FONT color="green">663</FONT>    <a name="line.663"></a>
<FONT color="green">664</FONT>        /**<a name="line.664"></a>
<FONT color="green">665</FONT>         * &lt;p&gt;Compares two Strings, returning &lt;code&gt;true&lt;/code&gt; if they are equal ignoring<a name="line.665"></a>
<FONT color="green">666</FONT>         * the case.&lt;/p&gt;<a name="line.666"></a>
<FONT color="green">667</FONT>         *<a name="line.667"></a>
<FONT color="green">668</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt;s are handled without exceptions. Two &lt;code&gt;null&lt;/code&gt;<a name="line.668"></a>
<FONT color="green">669</FONT>         * references are considered equal. Comparison is case insensitive.&lt;/p&gt;<a name="line.669"></a>
<FONT color="green">670</FONT>         *<a name="line.670"></a>
<FONT color="green">671</FONT>         * &lt;pre&gt;<a name="line.671"></a>
<FONT color="green">672</FONT>         * StringUtils.equalsIgnoreCase(null, null)   = true<a name="line.672"></a>
<FONT color="green">673</FONT>         * StringUtils.equalsIgnoreCase(null, "abc")  = false<a name="line.673"></a>
<FONT color="green">674</FONT>         * StringUtils.equalsIgnoreCase("abc", null)  = false<a name="line.674"></a>
<FONT color="green">675</FONT>         * StringUtils.equalsIgnoreCase("abc", "abc") = true<a name="line.675"></a>
<FONT color="green">676</FONT>         * StringUtils.equalsIgnoreCase("abc", "ABC") = true<a name="line.676"></a>
<FONT color="green">677</FONT>         * &lt;/pre&gt;<a name="line.677"></a>
<FONT color="green">678</FONT>         *<a name="line.678"></a>
<FONT color="green">679</FONT>         * @see java.lang.String#equalsIgnoreCase(String)<a name="line.679"></a>
<FONT color="green">680</FONT>         * @param str1  the first String, may be null<a name="line.680"></a>
<FONT color="green">681</FONT>         * @param str2  the second String, may be null<a name="line.681"></a>
<FONT color="green">682</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the Strings are equal, case insensitive, or<a name="line.682"></a>
<FONT color="green">683</FONT>         *  both &lt;code&gt;null&lt;/code&gt;<a name="line.683"></a>
<FONT color="green">684</FONT>         */<a name="line.684"></a>
<FONT color="green">685</FONT>        public static boolean equalsIgnoreCase(String str1, String str2) {<a name="line.685"></a>
<FONT color="green">686</FONT>            return str1 == null ? str2 == null : str1.equalsIgnoreCase(str2);<a name="line.686"></a>
<FONT color="green">687</FONT>        }<a name="line.687"></a>
<FONT color="green">688</FONT>    <a name="line.688"></a>
<FONT color="green">689</FONT>        // IndexOf<a name="line.689"></a>
<FONT color="green">690</FONT>        //-----------------------------------------------------------------------<a name="line.690"></a>
<FONT color="green">691</FONT>        /**<a name="line.691"></a>
<FONT color="green">692</FONT>         * &lt;p&gt;Finds the first index within a String, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.692"></a>
<FONT color="green">693</FONT>         * This method uses {@link String#indexOf(int)}.&lt;/p&gt;<a name="line.693"></a>
<FONT color="green">694</FONT>         *<a name="line.694"></a>
<FONT color="green">695</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; or empty ("") String will return &lt;code&gt;INDEX_NOT_FOUND (-1)&lt;/code&gt;.&lt;/p&gt;<a name="line.695"></a>
<FONT color="green">696</FONT>         *<a name="line.696"></a>
<FONT color="green">697</FONT>         * &lt;pre&gt;<a name="line.697"></a>
<FONT color="green">698</FONT>         * StringUtils.indexOf(null, *)         = -1<a name="line.698"></a>
<FONT color="green">699</FONT>         * StringUtils.indexOf("", *)           = -1<a name="line.699"></a>
<FONT color="green">700</FONT>         * StringUtils.indexOf("aabaabaa", 'a') = 0<a name="line.700"></a>
<FONT color="green">701</FONT>         * StringUtils.indexOf("aabaabaa", 'b') = 2<a name="line.701"></a>
<FONT color="green">702</FONT>         * &lt;/pre&gt;<a name="line.702"></a>
<FONT color="green">703</FONT>         *<a name="line.703"></a>
<FONT color="green">704</FONT>         * @param str  the String to check, may be null<a name="line.704"></a>
<FONT color="green">705</FONT>         * @param searchChar  the character to find<a name="line.705"></a>
<FONT color="green">706</FONT>         * @return the first index of the search character,<a name="line.706"></a>
<FONT color="green">707</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.707"></a>
<FONT color="green">708</FONT>         * @since 2.0<a name="line.708"></a>
<FONT color="green">709</FONT>         */<a name="line.709"></a>
<FONT color="green">710</FONT>        public static int indexOf(String str, char searchChar) {<a name="line.710"></a>
<FONT color="green">711</FONT>            if (isEmpty(str)) {<a name="line.711"></a>
<FONT color="green">712</FONT>                return INDEX_NOT_FOUND;<a name="line.712"></a>
<FONT color="green">713</FONT>            }<a name="line.713"></a>
<FONT color="green">714</FONT>            return str.indexOf(searchChar);<a name="line.714"></a>
<FONT color="green">715</FONT>        }<a name="line.715"></a>
<FONT color="green">716</FONT>    <a name="line.716"></a>
<FONT color="green">717</FONT>        /**<a name="line.717"></a>
<FONT color="green">718</FONT>         * &lt;p&gt;Finds the first index within a String from a start position,<a name="line.718"></a>
<FONT color="green">719</FONT>         * handling &lt;code&gt;null&lt;/code&gt;.<a name="line.719"></a>
<FONT color="green">720</FONT>         * This method uses {@link String#indexOf(int, int)}.&lt;/p&gt;<a name="line.720"></a>
<FONT color="green">721</FONT>         *<a name="line.721"></a>
<FONT color="green">722</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; or empty ("") String will return &lt;code&gt;(INDEX_NOT_FOUND) -1&lt;/code&gt;.<a name="line.722"></a>
<FONT color="green">723</FONT>         * A negative start position is treated as zero.<a name="line.723"></a>
<FONT color="green">724</FONT>         * A start position greater than the string length returns &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.724"></a>
<FONT color="green">725</FONT>         *<a name="line.725"></a>
<FONT color="green">726</FONT>         * &lt;pre&gt;<a name="line.726"></a>
<FONT color="green">727</FONT>         * StringUtils.indexOf(null, *, *)          = -1<a name="line.727"></a>
<FONT color="green">728</FONT>         * StringUtils.indexOf("", *, *)            = -1<a name="line.728"></a>
<FONT color="green">729</FONT>         * StringUtils.indexOf("aabaabaa", 'b', 0)  = 2<a name="line.729"></a>
<FONT color="green">730</FONT>         * StringUtils.indexOf("aabaabaa", 'b', 3)  = 5<a name="line.730"></a>
<FONT color="green">731</FONT>         * StringUtils.indexOf("aabaabaa", 'b', 9)  = -1<a name="line.731"></a>
<FONT color="green">732</FONT>         * StringUtils.indexOf("aabaabaa", 'b', -1) = 2<a name="line.732"></a>
<FONT color="green">733</FONT>         * &lt;/pre&gt;<a name="line.733"></a>
<FONT color="green">734</FONT>         *<a name="line.734"></a>
<FONT color="green">735</FONT>         * @param str  the String to check, may be null<a name="line.735"></a>
<FONT color="green">736</FONT>         * @param searchChar  the character to find<a name="line.736"></a>
<FONT color="green">737</FONT>         * @param startPos  the start position, negative treated as zero<a name="line.737"></a>
<FONT color="green">738</FONT>         * @return the first index of the search character,<a name="line.738"></a>
<FONT color="green">739</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.739"></a>
<FONT color="green">740</FONT>         * @since 2.0<a name="line.740"></a>
<FONT color="green">741</FONT>         */<a name="line.741"></a>
<FONT color="green">742</FONT>        public static int indexOf(String str, char searchChar, int startPos) {<a name="line.742"></a>
<FONT color="green">743</FONT>            if (isEmpty(str)) {<a name="line.743"></a>
<FONT color="green">744</FONT>                return INDEX_NOT_FOUND;<a name="line.744"></a>
<FONT color="green">745</FONT>            }<a name="line.745"></a>
<FONT color="green">746</FONT>            return str.indexOf(searchChar, startPos);<a name="line.746"></a>
<FONT color="green">747</FONT>        }<a name="line.747"></a>
<FONT color="green">748</FONT>    <a name="line.748"></a>
<FONT color="green">749</FONT>        /**<a name="line.749"></a>
<FONT color="green">750</FONT>         * &lt;p&gt;Finds the first index within a String, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.750"></a>
<FONT color="green">751</FONT>         * This method uses {@link String#indexOf(String)}.&lt;/p&gt;<a name="line.751"></a>
<FONT color="green">752</FONT>         *<a name="line.752"></a>
<FONT color="green">753</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.753"></a>
<FONT color="green">754</FONT>         *<a name="line.754"></a>
<FONT color="green">755</FONT>         * &lt;pre&gt;<a name="line.755"></a>
<FONT color="green">756</FONT>         * StringUtils.indexOf(null, *)          = -1<a name="line.756"></a>
<FONT color="green">757</FONT>         * StringUtils.indexOf(*, null)          = -1<a name="line.757"></a>
<FONT color="green">758</FONT>         * StringUtils.indexOf("", "")           = 0<a name="line.758"></a>
<FONT color="green">759</FONT>         * StringUtils.indexOf("", *)            = -1 (except when * = "")<a name="line.759"></a>
<FONT color="green">760</FONT>         * StringUtils.indexOf("aabaabaa", "a")  = 0<a name="line.760"></a>
<FONT color="green">761</FONT>         * StringUtils.indexOf("aabaabaa", "b")  = 2<a name="line.761"></a>
<FONT color="green">762</FONT>         * StringUtils.indexOf("aabaabaa", "ab") = 1<a name="line.762"></a>
<FONT color="green">763</FONT>         * StringUtils.indexOf("aabaabaa", "")   = 0<a name="line.763"></a>
<FONT color="green">764</FONT>         * &lt;/pre&gt;<a name="line.764"></a>
<FONT color="green">765</FONT>         *<a name="line.765"></a>
<FONT color="green">766</FONT>         * @param str  the String to check, may be null<a name="line.766"></a>
<FONT color="green">767</FONT>         * @param searchStr  the String to find, may be null<a name="line.767"></a>
<FONT color="green">768</FONT>         * @return the first index of the search String,<a name="line.768"></a>
<FONT color="green">769</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.769"></a>
<FONT color="green">770</FONT>         * @since 2.0<a name="line.770"></a>
<FONT color="green">771</FONT>         */<a name="line.771"></a>
<FONT color="green">772</FONT>        public static int indexOf(String str, String searchStr) {<a name="line.772"></a>
<FONT color="green">773</FONT>            if (str == null || searchStr == null) {<a name="line.773"></a>
<FONT color="green">774</FONT>                return INDEX_NOT_FOUND;<a name="line.774"></a>
<FONT color="green">775</FONT>            }<a name="line.775"></a>
<FONT color="green">776</FONT>            return str.indexOf(searchStr);<a name="line.776"></a>
<FONT color="green">777</FONT>        }<a name="line.777"></a>
<FONT color="green">778</FONT>    <a name="line.778"></a>
<FONT color="green">779</FONT>        /**<a name="line.779"></a>
<FONT color="green">780</FONT>         * &lt;p&gt;Finds the n-th index within a String, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.780"></a>
<FONT color="green">781</FONT>         * This method uses {@link String#indexOf(String)}.&lt;/p&gt;<a name="line.781"></a>
<FONT color="green">782</FONT>         *<a name="line.782"></a>
<FONT color="green">783</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.783"></a>
<FONT color="green">784</FONT>         *<a name="line.784"></a>
<FONT color="green">785</FONT>         * &lt;pre&gt;<a name="line.785"></a>
<FONT color="green">786</FONT>         * StringUtils.ordinalIndexOf(null, *, *)          = -1<a name="line.786"></a>
<FONT color="green">787</FONT>         * StringUtils.ordinalIndexOf(*, null, *)          = -1<a name="line.787"></a>
<FONT color="green">788</FONT>         * StringUtils.ordinalIndexOf("", "", *)           = 0<a name="line.788"></a>
<FONT color="green">789</FONT>         * StringUtils.ordinalIndexOf("aabaabaa", "a", 1)  = 0<a name="line.789"></a>
<FONT color="green">790</FONT>         * StringUtils.ordinalIndexOf("aabaabaa", "a", 2)  = 1<a name="line.790"></a>
<FONT color="green">791</FONT>         * StringUtils.ordinalIndexOf("aabaabaa", "b", 1)  = 2<a name="line.791"></a>
<FONT color="green">792</FONT>         * StringUtils.ordinalIndexOf("aabaabaa", "b", 2)  = 5<a name="line.792"></a>
<FONT color="green">793</FONT>         * StringUtils.ordinalIndexOf("aabaabaa", "ab", 1) = 1<a name="line.793"></a>
<FONT color="green">794</FONT>         * StringUtils.ordinalIndexOf("aabaabaa", "ab", 2) = 4<a name="line.794"></a>
<FONT color="green">795</FONT>         * StringUtils.ordinalIndexOf("aabaabaa", "", 1)   = 0<a name="line.795"></a>
<FONT color="green">796</FONT>         * StringUtils.ordinalIndexOf("aabaabaa", "", 2)   = 0<a name="line.796"></a>
<FONT color="green">797</FONT>         * &lt;/pre&gt;<a name="line.797"></a>
<FONT color="green">798</FONT>         *<a name="line.798"></a>
<FONT color="green">799</FONT>         * &lt;p&gt;Note that 'head(String str, int n)' may be implemented as: &lt;/p&gt;<a name="line.799"></a>
<FONT color="green">800</FONT>         *<a name="line.800"></a>
<FONT color="green">801</FONT>         * &lt;pre&gt;<a name="line.801"></a>
<FONT color="green">802</FONT>         *   str.substring(0, lastOrdinalIndexOf(str, "\n", n))<a name="line.802"></a>
<FONT color="green">803</FONT>         * &lt;/pre&gt;<a name="line.803"></a>
<FONT color="green">804</FONT>         *<a name="line.804"></a>
<FONT color="green">805</FONT>         * @param str  the String to check, may be null<a name="line.805"></a>
<FONT color="green">806</FONT>         * @param searchStr  the String to find, may be null<a name="line.806"></a>
<FONT color="green">807</FONT>         * @param ordinal  the n-th &lt;code&gt;searchStr&lt;/code&gt; to find<a name="line.807"></a>
<FONT color="green">808</FONT>         * @return the n-th index of the search String,<a name="line.808"></a>
<FONT color="green">809</FONT>         *  &lt;code&gt;-1&lt;/code&gt; (&lt;code&gt;INDEX_NOT_FOUND&lt;/code&gt;) if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.809"></a>
<FONT color="green">810</FONT>         * @since 2.1<a name="line.810"></a>
<FONT color="green">811</FONT>         */<a name="line.811"></a>
<FONT color="green">812</FONT>        public static int ordinalIndexOf(String str, String searchStr, int ordinal) {<a name="line.812"></a>
<FONT color="green">813</FONT>            return ordinalIndexOf(str, searchStr, ordinal, false);<a name="line.813"></a>
<FONT color="green">814</FONT>        }<a name="line.814"></a>
<FONT color="green">815</FONT>    <a name="line.815"></a>
<FONT color="green">816</FONT>        /**<a name="line.816"></a>
<FONT color="green">817</FONT>         * &lt;p&gt;Finds the n-th index within a String, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.817"></a>
<FONT color="green">818</FONT>         * This method uses {@link String#indexOf(String)}.&lt;/p&gt;<a name="line.818"></a>
<FONT color="green">819</FONT>         *<a name="line.819"></a>
<FONT color="green">820</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.820"></a>
<FONT color="green">821</FONT>         *<a name="line.821"></a>
<FONT color="green">822</FONT>         * @param str  the String to check, may be null<a name="line.822"></a>
<FONT color="green">823</FONT>         * @param searchStr  the String to find, may be null<a name="line.823"></a>
<FONT color="green">824</FONT>         * @param ordinal  the n-th &lt;code&gt;searchStr&lt;/code&gt; to find<a name="line.824"></a>
<FONT color="green">825</FONT>         * @param lastIndex true if lastOrdinalIndexOf() otherwise false if ordinalIndexOf()<a name="line.825"></a>
<FONT color="green">826</FONT>         * @return the n-th index of the search String,<a name="line.826"></a>
<FONT color="green">827</FONT>         *  &lt;code&gt;-1&lt;/code&gt; (&lt;code&gt;INDEX_NOT_FOUND&lt;/code&gt;) if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.827"></a>
<FONT color="green">828</FONT>         */<a name="line.828"></a>
<FONT color="green">829</FONT>        // Shared code between ordinalIndexOf(String,String,int) and lastOrdinalIndexOf(String,String,int)<a name="line.829"></a>
<FONT color="green">830</FONT>        private static int ordinalIndexOf(String str, String searchStr, int ordinal, boolean lastIndex) {<a name="line.830"></a>
<FONT color="green">831</FONT>            if (str == null || searchStr == null || ordinal &lt;= 0) {<a name="line.831"></a>
<FONT color="green">832</FONT>                return INDEX_NOT_FOUND;<a name="line.832"></a>
<FONT color="green">833</FONT>            }<a name="line.833"></a>
<FONT color="green">834</FONT>            if (searchStr.length() == 0) {<a name="line.834"></a>
<FONT color="green">835</FONT>                return lastIndex ? str.length() : 0;<a name="line.835"></a>
<FONT color="green">836</FONT>            }<a name="line.836"></a>
<FONT color="green">837</FONT>            int found = 0;<a name="line.837"></a>
<FONT color="green">838</FONT>            int index = lastIndex ? str.length() : INDEX_NOT_FOUND;<a name="line.838"></a>
<FONT color="green">839</FONT>            do {<a name="line.839"></a>
<FONT color="green">840</FONT>                if(lastIndex) {<a name="line.840"></a>
<FONT color="green">841</FONT>                    index = str.lastIndexOf(searchStr, index - 1);<a name="line.841"></a>
<FONT color="green">842</FONT>                } else {<a name="line.842"></a>
<FONT color="green">843</FONT>                    index = str.indexOf(searchStr, index + 1);<a name="line.843"></a>
<FONT color="green">844</FONT>                }<a name="line.844"></a>
<FONT color="green">845</FONT>                if (index &lt; 0) {<a name="line.845"></a>
<FONT color="green">846</FONT>                    return index;<a name="line.846"></a>
<FONT color="green">847</FONT>                }<a name="line.847"></a>
<FONT color="green">848</FONT>                found++;<a name="line.848"></a>
<FONT color="green">849</FONT>            } while (found &lt; ordinal);<a name="line.849"></a>
<FONT color="green">850</FONT>            return index;<a name="line.850"></a>
<FONT color="green">851</FONT>        }<a name="line.851"></a>
<FONT color="green">852</FONT>    <a name="line.852"></a>
<FONT color="green">853</FONT>        /**<a name="line.853"></a>
<FONT color="green">854</FONT>         * &lt;p&gt;Finds the first index within a String, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.854"></a>
<FONT color="green">855</FONT>         * This method uses {@link String#indexOf(String, int)}.&lt;/p&gt;<a name="line.855"></a>
<FONT color="green">856</FONT>         *<a name="line.856"></a>
<FONT color="green">857</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.857"></a>
<FONT color="green">858</FONT>         * A negative start position is treated as zero.<a name="line.858"></a>
<FONT color="green">859</FONT>         * An empty ("") search String always matches.<a name="line.859"></a>
<FONT color="green">860</FONT>         * A start position greater than the string length only matches<a name="line.860"></a>
<FONT color="green">861</FONT>         * an empty search String.&lt;/p&gt;<a name="line.861"></a>
<FONT color="green">862</FONT>         *<a name="line.862"></a>
<FONT color="green">863</FONT>         * &lt;pre&gt;<a name="line.863"></a>
<FONT color="green">864</FONT>         * StringUtils.indexOf(null, *, *)          = -1<a name="line.864"></a>
<FONT color="green">865</FONT>         * StringUtils.indexOf(*, null, *)          = -1<a name="line.865"></a>
<FONT color="green">866</FONT>         * StringUtils.indexOf("", "", 0)           = 0<a name="line.866"></a>
<FONT color="green">867</FONT>         * StringUtils.indexOf("", *, 0)            = -1 (except when * = "")<a name="line.867"></a>
<FONT color="green">868</FONT>         * StringUtils.indexOf("aabaabaa", "a", 0)  = 0<a name="line.868"></a>
<FONT color="green">869</FONT>         * StringUtils.indexOf("aabaabaa", "b", 0)  = 2<a name="line.869"></a>
<FONT color="green">870</FONT>         * StringUtils.indexOf("aabaabaa", "ab", 0) = 1<a name="line.870"></a>
<FONT color="green">871</FONT>         * StringUtils.indexOf("aabaabaa", "b", 3)  = 5<a name="line.871"></a>
<FONT color="green">872</FONT>         * StringUtils.indexOf("aabaabaa", "b", 9)  = -1<a name="line.872"></a>
<FONT color="green">873</FONT>         * StringUtils.indexOf("aabaabaa", "b", -1) = 2<a name="line.873"></a>
<FONT color="green">874</FONT>         * StringUtils.indexOf("aabaabaa", "", 2)   = 2<a name="line.874"></a>
<FONT color="green">875</FONT>         * StringUtils.indexOf("abc", "", 9)        = 3<a name="line.875"></a>
<FONT color="green">876</FONT>         * &lt;/pre&gt;<a name="line.876"></a>
<FONT color="green">877</FONT>         *<a name="line.877"></a>
<FONT color="green">878</FONT>         * @param str  the String to check, may be null<a name="line.878"></a>
<FONT color="green">879</FONT>         * @param searchStr  the String to find, may be null<a name="line.879"></a>
<FONT color="green">880</FONT>         * @param startPos  the start position, negative treated as zero<a name="line.880"></a>
<FONT color="green">881</FONT>         * @return the first index of the search String,<a name="line.881"></a>
<FONT color="green">882</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.882"></a>
<FONT color="green">883</FONT>         * @since 2.0<a name="line.883"></a>
<FONT color="green">884</FONT>         */<a name="line.884"></a>
<FONT color="green">885</FONT>        public static int indexOf(String str, String searchStr, int startPos) {<a name="line.885"></a>
<FONT color="green">886</FONT>            if (str == null || searchStr == null) {<a name="line.886"></a>
<FONT color="green">887</FONT>                return INDEX_NOT_FOUND;<a name="line.887"></a>
<FONT color="green">888</FONT>            }<a name="line.888"></a>
<FONT color="green">889</FONT>            // JDK1.2/JDK1.3 have a bug, when startPos &gt; str.length for "", hence<a name="line.889"></a>
<FONT color="green">890</FONT>            if (searchStr.length() == 0 &amp;&amp; startPos &gt;= str.length()) {<a name="line.890"></a>
<FONT color="green">891</FONT>                return str.length();<a name="line.891"></a>
<FONT color="green">892</FONT>            }<a name="line.892"></a>
<FONT color="green">893</FONT>            return str.indexOf(searchStr, startPos);<a name="line.893"></a>
<FONT color="green">894</FONT>        }<a name="line.894"></a>
<FONT color="green">895</FONT>    <a name="line.895"></a>
<FONT color="green">896</FONT>        /**<a name="line.896"></a>
<FONT color="green">897</FONT>         * &lt;p&gt;Case in-sensitive find of the first index within a String.&lt;/p&gt;<a name="line.897"></a>
<FONT color="green">898</FONT>         *<a name="line.898"></a>
<FONT color="green">899</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.899"></a>
<FONT color="green">900</FONT>         * A negative start position is treated as zero.<a name="line.900"></a>
<FONT color="green">901</FONT>         * An empty ("") search String always matches.<a name="line.901"></a>
<FONT color="green">902</FONT>         * A start position greater than the string length only matches<a name="line.902"></a>
<FONT color="green">903</FONT>         * an empty search String.&lt;/p&gt;<a name="line.903"></a>
<FONT color="green">904</FONT>         *<a name="line.904"></a>
<FONT color="green">905</FONT>         * &lt;pre&gt;<a name="line.905"></a>
<FONT color="green">906</FONT>         * StringUtils.indexOfIgnoreCase(null, *)          = -1<a name="line.906"></a>
<FONT color="green">907</FONT>         * StringUtils.indexOfIgnoreCase(*, null)          = -1<a name="line.907"></a>
<FONT color="green">908</FONT>         * StringUtils.indexOfIgnoreCase("", "")           = 0<a name="line.908"></a>
<FONT color="green">909</FONT>         * StringUtils.indexOfIgnoreCase("aabaabaa", "a")  = 0<a name="line.909"></a>
<FONT color="green">910</FONT>         * StringUtils.indexOfIgnoreCase("aabaabaa", "b")  = 2<a name="line.910"></a>
<FONT color="green">911</FONT>         * StringUtils.indexOfIgnoreCase("aabaabaa", "ab") = 1<a name="line.911"></a>
<FONT color="green">912</FONT>         * &lt;/pre&gt;<a name="line.912"></a>
<FONT color="green">913</FONT>         *<a name="line.913"></a>
<FONT color="green">914</FONT>         * @param str  the String to check, may be null<a name="line.914"></a>
<FONT color="green">915</FONT>         * @param searchStr  the String to find, may be null<a name="line.915"></a>
<FONT color="green">916</FONT>         * @return the first index of the search String,<a name="line.916"></a>
<FONT color="green">917</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.917"></a>
<FONT color="green">918</FONT>         * @since 2.5<a name="line.918"></a>
<FONT color="green">919</FONT>         */<a name="line.919"></a>
<FONT color="green">920</FONT>        public static int indexOfIgnoreCase(String str, String searchStr) {<a name="line.920"></a>
<FONT color="green">921</FONT>            return indexOfIgnoreCase(str, searchStr, 0);<a name="line.921"></a>
<FONT color="green">922</FONT>        }<a name="line.922"></a>
<FONT color="green">923</FONT>    <a name="line.923"></a>
<FONT color="green">924</FONT>        /**<a name="line.924"></a>
<FONT color="green">925</FONT>         * &lt;p&gt;Case in-sensitive find of the first index within a String<a name="line.925"></a>
<FONT color="green">926</FONT>         * from the specified position.&lt;/p&gt;<a name="line.926"></a>
<FONT color="green">927</FONT>         *<a name="line.927"></a>
<FONT color="green">928</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.928"></a>
<FONT color="green">929</FONT>         * A negative start position is treated as zero.<a name="line.929"></a>
<FONT color="green">930</FONT>         * An empty ("") search String always matches.<a name="line.930"></a>
<FONT color="green">931</FONT>         * A start position greater than the string length only matches<a name="line.931"></a>
<FONT color="green">932</FONT>         * an empty search String.&lt;/p&gt;<a name="line.932"></a>
<FONT color="green">933</FONT>         *<a name="line.933"></a>
<FONT color="green">934</FONT>         * &lt;pre&gt;<a name="line.934"></a>
<FONT color="green">935</FONT>         * StringUtils.indexOfIgnoreCase(null, *, *)          = -1<a name="line.935"></a>
<FONT color="green">936</FONT>         * StringUtils.indexOfIgnoreCase(*, null, *)          = -1<a name="line.936"></a>
<FONT color="green">937</FONT>         * StringUtils.indexOfIgnoreCase("", "", 0)           = 0<a name="line.937"></a>
<FONT color="green">938</FONT>         * StringUtils.indexOfIgnoreCase("aabaabaa", "A", 0)  = 0<a name="line.938"></a>
<FONT color="green">939</FONT>         * StringUtils.indexOfIgnoreCase("aabaabaa", "B", 0)  = 2<a name="line.939"></a>
<FONT color="green">940</FONT>         * StringUtils.indexOfIgnoreCase("aabaabaa", "AB", 0) = 1<a name="line.940"></a>
<FONT color="green">941</FONT>         * StringUtils.indexOfIgnoreCase("aabaabaa", "B", 3)  = 5<a name="line.941"></a>
<FONT color="green">942</FONT>         * StringUtils.indexOfIgnoreCase("aabaabaa", "B", 9)  = -1<a name="line.942"></a>
<FONT color="green">943</FONT>         * StringUtils.indexOfIgnoreCase("aabaabaa", "B", -1) = 2<a name="line.943"></a>
<FONT color="green">944</FONT>         * StringUtils.indexOfIgnoreCase("aabaabaa", "", 2)   = 2<a name="line.944"></a>
<FONT color="green">945</FONT>         * StringUtils.indexOfIgnoreCase("abc", "", 9)        = 3<a name="line.945"></a>
<FONT color="green">946</FONT>         * &lt;/pre&gt;<a name="line.946"></a>
<FONT color="green">947</FONT>         *<a name="line.947"></a>
<FONT color="green">948</FONT>         * @param str  the String to check, may be null<a name="line.948"></a>
<FONT color="green">949</FONT>         * @param searchStr  the String to find, may be null<a name="line.949"></a>
<FONT color="green">950</FONT>         * @param startPos  the start position, negative treated as zero<a name="line.950"></a>
<FONT color="green">951</FONT>         * @return the first index of the search String,<a name="line.951"></a>
<FONT color="green">952</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.952"></a>
<FONT color="green">953</FONT>         * @since 2.5<a name="line.953"></a>
<FONT color="green">954</FONT>         */<a name="line.954"></a>
<FONT color="green">955</FONT>        public static int indexOfIgnoreCase(String str, String searchStr, int startPos) {<a name="line.955"></a>
<FONT color="green">956</FONT>            if (str == null || searchStr == null) {<a name="line.956"></a>
<FONT color="green">957</FONT>                return INDEX_NOT_FOUND;<a name="line.957"></a>
<FONT color="green">958</FONT>            }<a name="line.958"></a>
<FONT color="green">959</FONT>            if (startPos &lt; 0) {<a name="line.959"></a>
<FONT color="green">960</FONT>                startPos = 0;<a name="line.960"></a>
<FONT color="green">961</FONT>            }<a name="line.961"></a>
<FONT color="green">962</FONT>            int endLimit = (str.length() - searchStr.length()) + 1;<a name="line.962"></a>
<FONT color="green">963</FONT>            if (startPos &gt; endLimit) {<a name="line.963"></a>
<FONT color="green">964</FONT>                return INDEX_NOT_FOUND;<a name="line.964"></a>
<FONT color="green">965</FONT>            }<a name="line.965"></a>
<FONT color="green">966</FONT>            if (searchStr.length() == 0) {<a name="line.966"></a>
<FONT color="green">967</FONT>                return startPos;<a name="line.967"></a>
<FONT color="green">968</FONT>            }<a name="line.968"></a>
<FONT color="green">969</FONT>            for (int i = startPos; i &lt; endLimit; i++) {<a name="line.969"></a>
<FONT color="green">970</FONT>                if (str.regionMatches(true, i, searchStr, 0, searchStr.length())) {<a name="line.970"></a>
<FONT color="green">971</FONT>                    return i;<a name="line.971"></a>
<FONT color="green">972</FONT>                }<a name="line.972"></a>
<FONT color="green">973</FONT>            }<a name="line.973"></a>
<FONT color="green">974</FONT>            return INDEX_NOT_FOUND;<a name="line.974"></a>
<FONT color="green">975</FONT>        }<a name="line.975"></a>
<FONT color="green">976</FONT>    <a name="line.976"></a>
<FONT color="green">977</FONT>        // LastIndexOf<a name="line.977"></a>
<FONT color="green">978</FONT>        //-----------------------------------------------------------------------<a name="line.978"></a>
<FONT color="green">979</FONT>        /**<a name="line.979"></a>
<FONT color="green">980</FONT>         * &lt;p&gt;Finds the last index within a String, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.980"></a>
<FONT color="green">981</FONT>         * This method uses {@link String#lastIndexOf(int)}.&lt;/p&gt;<a name="line.981"></a>
<FONT color="green">982</FONT>         *<a name="line.982"></a>
<FONT color="green">983</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; or empty ("") String will return &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.983"></a>
<FONT color="green">984</FONT>         *<a name="line.984"></a>
<FONT color="green">985</FONT>         * &lt;pre&gt;<a name="line.985"></a>
<FONT color="green">986</FONT>         * StringUtils.lastIndexOf(null, *)         = -1<a name="line.986"></a>
<FONT color="green">987</FONT>         * StringUtils.lastIndexOf("", *)           = -1<a name="line.987"></a>
<FONT color="green">988</FONT>         * StringUtils.lastIndexOf("aabaabaa", 'a') = 7<a name="line.988"></a>
<FONT color="green">989</FONT>         * StringUtils.lastIndexOf("aabaabaa", 'b') = 5<a name="line.989"></a>
<FONT color="green">990</FONT>         * &lt;/pre&gt;<a name="line.990"></a>
<FONT color="green">991</FONT>         *<a name="line.991"></a>
<FONT color="green">992</FONT>         * @param str  the String to check, may be null<a name="line.992"></a>
<FONT color="green">993</FONT>         * @param searchChar  the character to find<a name="line.993"></a>
<FONT color="green">994</FONT>         * @return the last index of the search character,<a name="line.994"></a>
<FONT color="green">995</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.995"></a>
<FONT color="green">996</FONT>         * @since 2.0<a name="line.996"></a>
<FONT color="green">997</FONT>         */<a name="line.997"></a>
<FONT color="green">998</FONT>        public static int lastIndexOf(String str, char searchChar) {<a name="line.998"></a>
<FONT color="green">999</FONT>            if (isEmpty(str)) {<a name="line.999"></a>
<FONT color="green">1000</FONT>                return INDEX_NOT_FOUND;<a name="line.1000"></a>
<FONT color="green">1001</FONT>            }<a name="line.1001"></a>
<FONT color="green">1002</FONT>            return str.lastIndexOf(searchChar);<a name="line.1002"></a>
<FONT color="green">1003</FONT>        }<a name="line.1003"></a>
<FONT color="green">1004</FONT>    <a name="line.1004"></a>
<FONT color="green">1005</FONT>        /**<a name="line.1005"></a>
<FONT color="green">1006</FONT>         * &lt;p&gt;Finds the last index within a String from a start position,<a name="line.1006"></a>
<FONT color="green">1007</FONT>         * handling &lt;code&gt;null&lt;/code&gt;.<a name="line.1007"></a>
<FONT color="green">1008</FONT>         * This method uses {@link String#lastIndexOf(int, int)}.&lt;/p&gt;<a name="line.1008"></a>
<FONT color="green">1009</FONT>         *<a name="line.1009"></a>
<FONT color="green">1010</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; or empty ("") String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1010"></a>
<FONT color="green">1011</FONT>         * A negative start position returns &lt;code&gt;-1&lt;/code&gt;.<a name="line.1011"></a>
<FONT color="green">1012</FONT>         * A start position greater than the string length searches the whole string.&lt;/p&gt;<a name="line.1012"></a>
<FONT color="green">1013</FONT>         *<a name="line.1013"></a>
<FONT color="green">1014</FONT>         * &lt;pre&gt;<a name="line.1014"></a>
<FONT color="green">1015</FONT>         * StringUtils.lastIndexOf(null, *, *)          = -1<a name="line.1015"></a>
<FONT color="green">1016</FONT>         * StringUtils.lastIndexOf("", *,  *)           = -1<a name="line.1016"></a>
<FONT color="green">1017</FONT>         * StringUtils.lastIndexOf("aabaabaa", 'b', 8)  = 5<a name="line.1017"></a>
<FONT color="green">1018</FONT>         * StringUtils.lastIndexOf("aabaabaa", 'b', 4)  = 2<a name="line.1018"></a>
<FONT color="green">1019</FONT>         * StringUtils.lastIndexOf("aabaabaa", 'b', 0)  = -1<a name="line.1019"></a>
<FONT color="green">1020</FONT>         * StringUtils.lastIndexOf("aabaabaa", 'b', 9)  = 5<a name="line.1020"></a>
<FONT color="green">1021</FONT>         * StringUtils.lastIndexOf("aabaabaa", 'b', -1) = -1<a name="line.1021"></a>
<FONT color="green">1022</FONT>         * StringUtils.lastIndexOf("aabaabaa", 'a', 0)  = 0<a name="line.1022"></a>
<FONT color="green">1023</FONT>         * &lt;/pre&gt;<a name="line.1023"></a>
<FONT color="green">1024</FONT>         *<a name="line.1024"></a>
<FONT color="green">1025</FONT>         * @param str  the String to check, may be null<a name="line.1025"></a>
<FONT color="green">1026</FONT>         * @param searchChar  the character to find<a name="line.1026"></a>
<FONT color="green">1027</FONT>         * @param startPos  the start position<a name="line.1027"></a>
<FONT color="green">1028</FONT>         * @return the last index of the search character,<a name="line.1028"></a>
<FONT color="green">1029</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.1029"></a>
<FONT color="green">1030</FONT>         * @since 2.0<a name="line.1030"></a>
<FONT color="green">1031</FONT>         */<a name="line.1031"></a>
<FONT color="green">1032</FONT>        public static int lastIndexOf(String str, char searchChar, int startPos) {<a name="line.1032"></a>
<FONT color="green">1033</FONT>            if (isEmpty(str)) {<a name="line.1033"></a>
<FONT color="green">1034</FONT>                return INDEX_NOT_FOUND;<a name="line.1034"></a>
<FONT color="green">1035</FONT>            }<a name="line.1035"></a>
<FONT color="green">1036</FONT>            return str.lastIndexOf(searchChar, startPos);<a name="line.1036"></a>
<FONT color="green">1037</FONT>        }<a name="line.1037"></a>
<FONT color="green">1038</FONT>    <a name="line.1038"></a>
<FONT color="green">1039</FONT>        /**<a name="line.1039"></a>
<FONT color="green">1040</FONT>         * &lt;p&gt;Finds the last index within a String, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.1040"></a>
<FONT color="green">1041</FONT>         * This method uses {@link String#lastIndexOf(String)}.&lt;/p&gt;<a name="line.1041"></a>
<FONT color="green">1042</FONT>         *<a name="line.1042"></a>
<FONT color="green">1043</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.1043"></a>
<FONT color="green">1044</FONT>         *<a name="line.1044"></a>
<FONT color="green">1045</FONT>         * &lt;pre&gt;<a name="line.1045"></a>
<FONT color="green">1046</FONT>         * StringUtils.lastIndexOf(null, *)          = -1<a name="line.1046"></a>
<FONT color="green">1047</FONT>         * StringUtils.lastIndexOf(*, null)          = -1<a name="line.1047"></a>
<FONT color="green">1048</FONT>         * StringUtils.lastIndexOf("", "")           = 0<a name="line.1048"></a>
<FONT color="green">1049</FONT>         * StringUtils.lastIndexOf("aabaabaa", "a")  = 7<a name="line.1049"></a>
<FONT color="green">1050</FONT>         * StringUtils.lastIndexOf("aabaabaa", "b")  = 5<a name="line.1050"></a>
<FONT color="green">1051</FONT>         * StringUtils.lastIndexOf("aabaabaa", "ab") = 4<a name="line.1051"></a>
<FONT color="green">1052</FONT>         * StringUtils.lastIndexOf("aabaabaa", "")   = 8<a name="line.1052"></a>
<FONT color="green">1053</FONT>         * &lt;/pre&gt;<a name="line.1053"></a>
<FONT color="green">1054</FONT>         *<a name="line.1054"></a>
<FONT color="green">1055</FONT>         * @param str  the String to check, may be null<a name="line.1055"></a>
<FONT color="green">1056</FONT>         * @param searchStr  the String to find, may be null<a name="line.1056"></a>
<FONT color="green">1057</FONT>         * @return the last index of the search String,<a name="line.1057"></a>
<FONT color="green">1058</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.1058"></a>
<FONT color="green">1059</FONT>         * @since 2.0<a name="line.1059"></a>
<FONT color="green">1060</FONT>         */<a name="line.1060"></a>
<FONT color="green">1061</FONT>        public static int lastIndexOf(String str, String searchStr) {<a name="line.1061"></a>
<FONT color="green">1062</FONT>            if (str == null || searchStr == null) {<a name="line.1062"></a>
<FONT color="green">1063</FONT>                return INDEX_NOT_FOUND;<a name="line.1063"></a>
<FONT color="green">1064</FONT>            }<a name="line.1064"></a>
<FONT color="green">1065</FONT>            return str.lastIndexOf(searchStr);<a name="line.1065"></a>
<FONT color="green">1066</FONT>        }<a name="line.1066"></a>
<FONT color="green">1067</FONT>    <a name="line.1067"></a>
<FONT color="green">1068</FONT>        /**<a name="line.1068"></a>
<FONT color="green">1069</FONT>         * &lt;p&gt;Finds the n-th last index within a String, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.1069"></a>
<FONT color="green">1070</FONT>         * This method uses {@link String#lastIndexOf(String)}.&lt;/p&gt;<a name="line.1070"></a>
<FONT color="green">1071</FONT>         *<a name="line.1071"></a>
<FONT color="green">1072</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.1072"></a>
<FONT color="green">1073</FONT>         *<a name="line.1073"></a>
<FONT color="green">1074</FONT>         * &lt;pre&gt;<a name="line.1074"></a>
<FONT color="green">1075</FONT>         * StringUtils.lastOrdinalIndexOf(null, *, *)          = -1<a name="line.1075"></a>
<FONT color="green">1076</FONT>         * StringUtils.lastOrdinalIndexOf(*, null, *)          = -1<a name="line.1076"></a>
<FONT color="green">1077</FONT>         * StringUtils.lastOrdinalIndexOf("", "", *)           = 0<a name="line.1077"></a>
<FONT color="green">1078</FONT>         * StringUtils.lastOrdinalIndexOf("aabaabaa", "a", 1)  = 7<a name="line.1078"></a>
<FONT color="green">1079</FONT>         * StringUtils.lastOrdinalIndexOf("aabaabaa", "a", 2)  = 6<a name="line.1079"></a>
<FONT color="green">1080</FONT>         * StringUtils.lastOrdinalIndexOf("aabaabaa", "b", 1)  = 5<a name="line.1080"></a>
<FONT color="green">1081</FONT>         * StringUtils.lastOrdinalIndexOf("aabaabaa", "b", 2)  = 2<a name="line.1081"></a>
<FONT color="green">1082</FONT>         * StringUtils.lastOrdinalIndexOf("aabaabaa", "ab", 1) = 4<a name="line.1082"></a>
<FONT color="green">1083</FONT>         * StringUtils.lastOrdinalIndexOf("aabaabaa", "ab", 2) = 1<a name="line.1083"></a>
<FONT color="green">1084</FONT>         * StringUtils.lastOrdinalIndexOf("aabaabaa", "", 1)   = 8<a name="line.1084"></a>
<FONT color="green">1085</FONT>         * StringUtils.lastOrdinalIndexOf("aabaabaa", "", 2)   = 8<a name="line.1085"></a>
<FONT color="green">1086</FONT>         * &lt;/pre&gt;<a name="line.1086"></a>
<FONT color="green">1087</FONT>         *<a name="line.1087"></a>
<FONT color="green">1088</FONT>         * &lt;p&gt;Note that 'tail(String str, int n)' may be implemented as: &lt;/p&gt;<a name="line.1088"></a>
<FONT color="green">1089</FONT>         *<a name="line.1089"></a>
<FONT color="green">1090</FONT>         * &lt;pre&gt;<a name="line.1090"></a>
<FONT color="green">1091</FONT>         *   str.substring(lastOrdinalIndexOf(str, "\n", n) + 1)<a name="line.1091"></a>
<FONT color="green">1092</FONT>         * &lt;/pre&gt;<a name="line.1092"></a>
<FONT color="green">1093</FONT>         *<a name="line.1093"></a>
<FONT color="green">1094</FONT>         * @param str  the String to check, may be null<a name="line.1094"></a>
<FONT color="green">1095</FONT>         * @param searchStr  the String to find, may be null<a name="line.1095"></a>
<FONT color="green">1096</FONT>         * @param ordinal  the n-th last &lt;code&gt;searchStr&lt;/code&gt; to find<a name="line.1096"></a>
<FONT color="green">1097</FONT>         * @return the n-th last index of the search String,<a name="line.1097"></a>
<FONT color="green">1098</FONT>         *  &lt;code&gt;-1&lt;/code&gt; (&lt;code&gt;INDEX_NOT_FOUND&lt;/code&gt;) if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.1098"></a>
<FONT color="green">1099</FONT>         * @since 2.5<a name="line.1099"></a>
<FONT color="green">1100</FONT>         */<a name="line.1100"></a>
<FONT color="green">1101</FONT>        public static int lastOrdinalIndexOf(String str, String searchStr, int ordinal) {<a name="line.1101"></a>
<FONT color="green">1102</FONT>            return ordinalIndexOf(str, searchStr, ordinal, true);<a name="line.1102"></a>
<FONT color="green">1103</FONT>        }<a name="line.1103"></a>
<FONT color="green">1104</FONT>    <a name="line.1104"></a>
<FONT color="green">1105</FONT>        /**<a name="line.1105"></a>
<FONT color="green">1106</FONT>         * &lt;p&gt;Finds the first index within a String, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.1106"></a>
<FONT color="green">1107</FONT>         * This method uses {@link String#lastIndexOf(String, int)}.&lt;/p&gt;<a name="line.1107"></a>
<FONT color="green">1108</FONT>         *<a name="line.1108"></a>
<FONT color="green">1109</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1109"></a>
<FONT color="green">1110</FONT>         * A negative start position returns &lt;code&gt;-1&lt;/code&gt;.<a name="line.1110"></a>
<FONT color="green">1111</FONT>         * An empty ("") search String always matches unless the start position is negative.<a name="line.1111"></a>
<FONT color="green">1112</FONT>         * A start position greater than the string length searches the whole string.&lt;/p&gt;<a name="line.1112"></a>
<FONT color="green">1113</FONT>         *<a name="line.1113"></a>
<FONT color="green">1114</FONT>         * &lt;pre&gt;<a name="line.1114"></a>
<FONT color="green">1115</FONT>         * StringUtils.lastIndexOf(null, *, *)          = -1<a name="line.1115"></a>
<FONT color="green">1116</FONT>         * StringUtils.lastIndexOf(*, null, *)          = -1<a name="line.1116"></a>
<FONT color="green">1117</FONT>         * StringUtils.lastIndexOf("aabaabaa", "a", 8)  = 7<a name="line.1117"></a>
<FONT color="green">1118</FONT>         * StringUtils.lastIndexOf("aabaabaa", "b", 8)  = 5<a name="line.1118"></a>
<FONT color="green">1119</FONT>         * StringUtils.lastIndexOf("aabaabaa", "ab", 8) = 4<a name="line.1119"></a>
<FONT color="green">1120</FONT>         * StringUtils.lastIndexOf("aabaabaa", "b", 9)  = 5<a name="line.1120"></a>
<FONT color="green">1121</FONT>         * StringUtils.lastIndexOf("aabaabaa", "b", -1) = -1<a name="line.1121"></a>
<FONT color="green">1122</FONT>         * StringUtils.lastIndexOf("aabaabaa", "a", 0)  = 0<a name="line.1122"></a>
<FONT color="green">1123</FONT>         * StringUtils.lastIndexOf("aabaabaa", "b", 0)  = -1<a name="line.1123"></a>
<FONT color="green">1124</FONT>         * &lt;/pre&gt;<a name="line.1124"></a>
<FONT color="green">1125</FONT>         *<a name="line.1125"></a>
<FONT color="green">1126</FONT>         * @param str  the String to check, may be null<a name="line.1126"></a>
<FONT color="green">1127</FONT>         * @param searchStr  the String to find, may be null<a name="line.1127"></a>
<FONT color="green">1128</FONT>         * @param startPos  the start position, negative treated as zero<a name="line.1128"></a>
<FONT color="green">1129</FONT>         * @return the first index of the search String,<a name="line.1129"></a>
<FONT color="green">1130</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.1130"></a>
<FONT color="green">1131</FONT>         * @since 2.0<a name="line.1131"></a>
<FONT color="green">1132</FONT>         */<a name="line.1132"></a>
<FONT color="green">1133</FONT>        public static int lastIndexOf(String str, String searchStr, int startPos) {<a name="line.1133"></a>
<FONT color="green">1134</FONT>            if (str == null || searchStr == null) {<a name="line.1134"></a>
<FONT color="green">1135</FONT>                return INDEX_NOT_FOUND;<a name="line.1135"></a>
<FONT color="green">1136</FONT>            }<a name="line.1136"></a>
<FONT color="green">1137</FONT>            return str.lastIndexOf(searchStr, startPos);<a name="line.1137"></a>
<FONT color="green">1138</FONT>        }<a name="line.1138"></a>
<FONT color="green">1139</FONT>    <a name="line.1139"></a>
<FONT color="green">1140</FONT>        /**<a name="line.1140"></a>
<FONT color="green">1141</FONT>         * &lt;p&gt;Case in-sensitive find of the last index within a String.&lt;/p&gt;<a name="line.1141"></a>
<FONT color="green">1142</FONT>         *<a name="line.1142"></a>
<FONT color="green">1143</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1143"></a>
<FONT color="green">1144</FONT>         * A negative start position returns &lt;code&gt;-1&lt;/code&gt;.<a name="line.1144"></a>
<FONT color="green">1145</FONT>         * An empty ("") search String always matches unless the start position is negative.<a name="line.1145"></a>
<FONT color="green">1146</FONT>         * A start position greater than the string length searches the whole string.&lt;/p&gt;<a name="line.1146"></a>
<FONT color="green">1147</FONT>         *<a name="line.1147"></a>
<FONT color="green">1148</FONT>         * &lt;pre&gt;<a name="line.1148"></a>
<FONT color="green">1149</FONT>         * StringUtils.lastIndexOfIgnoreCase(null, *)          = -1<a name="line.1149"></a>
<FONT color="green">1150</FONT>         * StringUtils.lastIndexOfIgnoreCase(*, null)          = -1<a name="line.1150"></a>
<FONT color="green">1151</FONT>         * StringUtils.lastIndexOfIgnoreCase("aabaabaa", "A")  = 7<a name="line.1151"></a>
<FONT color="green">1152</FONT>         * StringUtils.lastIndexOfIgnoreCase("aabaabaa", "B")  = 5<a name="line.1152"></a>
<FONT color="green">1153</FONT>         * StringUtils.lastIndexOfIgnoreCase("aabaabaa", "AB") = 4<a name="line.1153"></a>
<FONT color="green">1154</FONT>         * &lt;/pre&gt;<a name="line.1154"></a>
<FONT color="green">1155</FONT>         *<a name="line.1155"></a>
<FONT color="green">1156</FONT>         * @param str  the String to check, may be null<a name="line.1156"></a>
<FONT color="green">1157</FONT>         * @param searchStr  the String to find, may be null<a name="line.1157"></a>
<FONT color="green">1158</FONT>         * @return the first index of the search String,<a name="line.1158"></a>
<FONT color="green">1159</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.1159"></a>
<FONT color="green">1160</FONT>         * @since 2.5<a name="line.1160"></a>
<FONT color="green">1161</FONT>         */<a name="line.1161"></a>
<FONT color="green">1162</FONT>        public static int lastIndexOfIgnoreCase(String str, String searchStr) {<a name="line.1162"></a>
<FONT color="green">1163</FONT>            if (str == null || searchStr == null) {<a name="line.1163"></a>
<FONT color="green">1164</FONT>                return INDEX_NOT_FOUND;<a name="line.1164"></a>
<FONT color="green">1165</FONT>            }<a name="line.1165"></a>
<FONT color="green">1166</FONT>            return lastIndexOfIgnoreCase(str, searchStr, str.length());<a name="line.1166"></a>
<FONT color="green">1167</FONT>        }<a name="line.1167"></a>
<FONT color="green">1168</FONT>    <a name="line.1168"></a>
<FONT color="green">1169</FONT>        /**<a name="line.1169"></a>
<FONT color="green">1170</FONT>         * &lt;p&gt;Case in-sensitive find of the last index within a String<a name="line.1170"></a>
<FONT color="green">1171</FONT>         * from the specified position.&lt;/p&gt;<a name="line.1171"></a>
<FONT color="green">1172</FONT>         *<a name="line.1172"></a>
<FONT color="green">1173</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1173"></a>
<FONT color="green">1174</FONT>         * A negative start position returns &lt;code&gt;-1&lt;/code&gt;.<a name="line.1174"></a>
<FONT color="green">1175</FONT>         * An empty ("") search String always matches unless the start position is negative.<a name="line.1175"></a>
<FONT color="green">1176</FONT>         * A start position greater than the string length searches the whole string.&lt;/p&gt;<a name="line.1176"></a>
<FONT color="green">1177</FONT>         *<a name="line.1177"></a>
<FONT color="green">1178</FONT>         * &lt;pre&gt;<a name="line.1178"></a>
<FONT color="green">1179</FONT>         * StringUtils.lastIndexOfIgnoreCase(null, *, *)          = -1<a name="line.1179"></a>
<FONT color="green">1180</FONT>         * StringUtils.lastIndexOfIgnoreCase(*, null, *)          = -1<a name="line.1180"></a>
<FONT color="green">1181</FONT>         * StringUtils.lastIndexOfIgnoreCase("aabaabaa", "A", 8)  = 7<a name="line.1181"></a>
<FONT color="green">1182</FONT>         * StringUtils.lastIndexOfIgnoreCase("aabaabaa", "B", 8)  = 5<a name="line.1182"></a>
<FONT color="green">1183</FONT>         * StringUtils.lastIndexOfIgnoreCase("aabaabaa", "AB", 8) = 4<a name="line.1183"></a>
<FONT color="green">1184</FONT>         * StringUtils.lastIndexOfIgnoreCase("aabaabaa", "B", 9)  = 5<a name="line.1184"></a>
<FONT color="green">1185</FONT>         * StringUtils.lastIndexOfIgnoreCase("aabaabaa", "B", -1) = -1<a name="line.1185"></a>
<FONT color="green">1186</FONT>         * StringUtils.lastIndexOfIgnoreCase("aabaabaa", "A", 0)  = 0<a name="line.1186"></a>
<FONT color="green">1187</FONT>         * StringUtils.lastIndexOfIgnoreCase("aabaabaa", "B", 0)  = -1<a name="line.1187"></a>
<FONT color="green">1188</FONT>         * &lt;/pre&gt;<a name="line.1188"></a>
<FONT color="green">1189</FONT>         *<a name="line.1189"></a>
<FONT color="green">1190</FONT>         * @param str  the String to check, may be null<a name="line.1190"></a>
<FONT color="green">1191</FONT>         * @param searchStr  the String to find, may be null<a name="line.1191"></a>
<FONT color="green">1192</FONT>         * @param startPos  the start position<a name="line.1192"></a>
<FONT color="green">1193</FONT>         * @return the first index of the search String,<a name="line.1193"></a>
<FONT color="green">1194</FONT>         *  -1 if no match or &lt;code&gt;null&lt;/code&gt; string input<a name="line.1194"></a>
<FONT color="green">1195</FONT>         * @since 2.5<a name="line.1195"></a>
<FONT color="green">1196</FONT>         */<a name="line.1196"></a>
<FONT color="green">1197</FONT>        public static int lastIndexOfIgnoreCase(String str, String searchStr, int startPos) {<a name="line.1197"></a>
<FONT color="green">1198</FONT>            if (str == null || searchStr == null) {<a name="line.1198"></a>
<FONT color="green">1199</FONT>                return INDEX_NOT_FOUND;<a name="line.1199"></a>
<FONT color="green">1200</FONT>            }<a name="line.1200"></a>
<FONT color="green">1201</FONT>            if (startPos &gt; (str.length() - searchStr.length())) {<a name="line.1201"></a>
<FONT color="green">1202</FONT>                startPos = str.length() - searchStr.length();<a name="line.1202"></a>
<FONT color="green">1203</FONT>            }<a name="line.1203"></a>
<FONT color="green">1204</FONT>            if (startPos &lt; 0) {<a name="line.1204"></a>
<FONT color="green">1205</FONT>                return INDEX_NOT_FOUND;<a name="line.1205"></a>
<FONT color="green">1206</FONT>            }<a name="line.1206"></a>
<FONT color="green">1207</FONT>            if (searchStr.length() == 0) {<a name="line.1207"></a>
<FONT color="green">1208</FONT>                return startPos;<a name="line.1208"></a>
<FONT color="green">1209</FONT>            }<a name="line.1209"></a>
<FONT color="green">1210</FONT>    <a name="line.1210"></a>
<FONT color="green">1211</FONT>            for (int i = startPos; i &gt;= 0; i--) {<a name="line.1211"></a>
<FONT color="green">1212</FONT>                if (str.regionMatches(true, i, searchStr, 0, searchStr.length())) {<a name="line.1212"></a>
<FONT color="green">1213</FONT>                    return i;<a name="line.1213"></a>
<FONT color="green">1214</FONT>                }<a name="line.1214"></a>
<FONT color="green">1215</FONT>            }<a name="line.1215"></a>
<FONT color="green">1216</FONT>            return INDEX_NOT_FOUND;<a name="line.1216"></a>
<FONT color="green">1217</FONT>        }<a name="line.1217"></a>
<FONT color="green">1218</FONT>    <a name="line.1218"></a>
<FONT color="green">1219</FONT>        // Contains<a name="line.1219"></a>
<FONT color="green">1220</FONT>        //-----------------------------------------------------------------------<a name="line.1220"></a>
<FONT color="green">1221</FONT>        /**<a name="line.1221"></a>
<FONT color="green">1222</FONT>         * &lt;p&gt;Checks if String contains a search character, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.1222"></a>
<FONT color="green">1223</FONT>         * This method uses {@link String#indexOf(int)}.&lt;/p&gt;<a name="line.1223"></a>
<FONT color="green">1224</FONT>         *<a name="line.1224"></a>
<FONT color="green">1225</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; or empty ("") String will return &lt;code&gt;false&lt;/code&gt;.&lt;/p&gt;<a name="line.1225"></a>
<FONT color="green">1226</FONT>         *<a name="line.1226"></a>
<FONT color="green">1227</FONT>         * &lt;pre&gt;<a name="line.1227"></a>
<FONT color="green">1228</FONT>         * StringUtils.contains(null, *)    = false<a name="line.1228"></a>
<FONT color="green">1229</FONT>         * StringUtils.contains("", *)      = false<a name="line.1229"></a>
<FONT color="green">1230</FONT>         * StringUtils.contains("abc", 'a') = true<a name="line.1230"></a>
<FONT color="green">1231</FONT>         * StringUtils.contains("abc", 'z') = false<a name="line.1231"></a>
<FONT color="green">1232</FONT>         * &lt;/pre&gt;<a name="line.1232"></a>
<FONT color="green">1233</FONT>         *<a name="line.1233"></a>
<FONT color="green">1234</FONT>         * @param str  the String to check, may be null<a name="line.1234"></a>
<FONT color="green">1235</FONT>         * @param searchChar  the character to find<a name="line.1235"></a>
<FONT color="green">1236</FONT>         * @return true if the String contains the search character,<a name="line.1236"></a>
<FONT color="green">1237</FONT>         *  false if not or &lt;code&gt;null&lt;/code&gt; string input<a name="line.1237"></a>
<FONT color="green">1238</FONT>         * @since 2.0<a name="line.1238"></a>
<FONT color="green">1239</FONT>         */<a name="line.1239"></a>
<FONT color="green">1240</FONT>        public static boolean contains(String str, char searchChar) {<a name="line.1240"></a>
<FONT color="green">1241</FONT>            if (isEmpty(str)) {<a name="line.1241"></a>
<FONT color="green">1242</FONT>                return false;<a name="line.1242"></a>
<FONT color="green">1243</FONT>            }<a name="line.1243"></a>
<FONT color="green">1244</FONT>            return str.indexOf(searchChar) &gt;= 0;<a name="line.1244"></a>
<FONT color="green">1245</FONT>        }<a name="line.1245"></a>
<FONT color="green">1246</FONT>    <a name="line.1246"></a>
<FONT color="green">1247</FONT>        /**<a name="line.1247"></a>
<FONT color="green">1248</FONT>         * &lt;p&gt;Checks if String contains a search String, handling &lt;code&gt;null&lt;/code&gt;.<a name="line.1248"></a>
<FONT color="green">1249</FONT>         * This method uses {@link String#indexOf(String)}.&lt;/p&gt;<a name="line.1249"></a>
<FONT color="green">1250</FONT>         *<a name="line.1250"></a>
<FONT color="green">1251</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;false&lt;/code&gt;.&lt;/p&gt;<a name="line.1251"></a>
<FONT color="green">1252</FONT>         *<a name="line.1252"></a>
<FONT color="green">1253</FONT>         * &lt;pre&gt;<a name="line.1253"></a>
<FONT color="green">1254</FONT>         * StringUtils.contains(null, *)     = false<a name="line.1254"></a>
<FONT color="green">1255</FONT>         * StringUtils.contains(*, null)     = false<a name="line.1255"></a>
<FONT color="green">1256</FONT>         * StringUtils.contains("", "")      = true<a name="line.1256"></a>
<FONT color="green">1257</FONT>         * StringUtils.contains("abc", "")   = true<a name="line.1257"></a>
<FONT color="green">1258</FONT>         * StringUtils.contains("abc", "a")  = true<a name="line.1258"></a>
<FONT color="green">1259</FONT>         * StringUtils.contains("abc", "z")  = false<a name="line.1259"></a>
<FONT color="green">1260</FONT>         * &lt;/pre&gt;<a name="line.1260"></a>
<FONT color="green">1261</FONT>         *<a name="line.1261"></a>
<FONT color="green">1262</FONT>         * @param str  the String to check, may be null<a name="line.1262"></a>
<FONT color="green">1263</FONT>         * @param searchStr  the String to find, may be null<a name="line.1263"></a>
<FONT color="green">1264</FONT>         * @return true if the String contains the search String,<a name="line.1264"></a>
<FONT color="green">1265</FONT>         *  false if not or &lt;code&gt;null&lt;/code&gt; string input<a name="line.1265"></a>
<FONT color="green">1266</FONT>         * @since 2.0<a name="line.1266"></a>
<FONT color="green">1267</FONT>         */<a name="line.1267"></a>
<FONT color="green">1268</FONT>        public static boolean contains(String str, String searchStr) {<a name="line.1268"></a>
<FONT color="green">1269</FONT>            if (str == null || searchStr == null) {<a name="line.1269"></a>
<FONT color="green">1270</FONT>                return false;<a name="line.1270"></a>
<FONT color="green">1271</FONT>            }<a name="line.1271"></a>
<FONT color="green">1272</FONT>            return str.indexOf(searchStr) &gt;= 0;<a name="line.1272"></a>
<FONT color="green">1273</FONT>        }<a name="line.1273"></a>
<FONT color="green">1274</FONT>    <a name="line.1274"></a>
<FONT color="green">1275</FONT>        /**<a name="line.1275"></a>
<FONT color="green">1276</FONT>         * &lt;p&gt;Checks if String contains a search String irrespective of case,<a name="line.1276"></a>
<FONT color="green">1277</FONT>         * handling &lt;code&gt;null&lt;/code&gt;. Case-insensitivity is defined as by<a name="line.1277"></a>
<FONT color="green">1278</FONT>         * {@link String#equalsIgnoreCase(String)}.<a name="line.1278"></a>
<FONT color="green">1279</FONT>         *<a name="line.1279"></a>
<FONT color="green">1280</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;false&lt;/code&gt;.&lt;/p&gt;<a name="line.1280"></a>
<FONT color="green">1281</FONT>         *<a name="line.1281"></a>
<FONT color="green">1282</FONT>         * &lt;pre&gt;<a name="line.1282"></a>
<FONT color="green">1283</FONT>         * StringUtils.contains(null, *) = false<a name="line.1283"></a>
<FONT color="green">1284</FONT>         * StringUtils.contains(*, null) = false<a name="line.1284"></a>
<FONT color="green">1285</FONT>         * StringUtils.contains("", "") = true<a name="line.1285"></a>
<FONT color="green">1286</FONT>         * StringUtils.contains("abc", "") = true<a name="line.1286"></a>
<FONT color="green">1287</FONT>         * StringUtils.contains("abc", "a") = true<a name="line.1287"></a>
<FONT color="green">1288</FONT>         * StringUtils.contains("abc", "z") = false<a name="line.1288"></a>
<FONT color="green">1289</FONT>         * StringUtils.contains("abc", "A") = true<a name="line.1289"></a>
<FONT color="green">1290</FONT>         * StringUtils.contains("abc", "Z") = false<a name="line.1290"></a>
<FONT color="green">1291</FONT>         * &lt;/pre&gt;<a name="line.1291"></a>
<FONT color="green">1292</FONT>         *<a name="line.1292"></a>
<FONT color="green">1293</FONT>         * @param str  the String to check, may be null<a name="line.1293"></a>
<FONT color="green">1294</FONT>         * @param searchStr  the String to find, may be null<a name="line.1294"></a>
<FONT color="green">1295</FONT>         * @return true if the String contains the search String irrespective of<a name="line.1295"></a>
<FONT color="green">1296</FONT>         * case or false if not or &lt;code&gt;null&lt;/code&gt; string input<a name="line.1296"></a>
<FONT color="green">1297</FONT>         */<a name="line.1297"></a>
<FONT color="green">1298</FONT>        public static boolean containsIgnoreCase(String str, String searchStr) {<a name="line.1298"></a>
<FONT color="green">1299</FONT>            if (str == null || searchStr == null) {<a name="line.1299"></a>
<FONT color="green">1300</FONT>                return false;<a name="line.1300"></a>
<FONT color="green">1301</FONT>            }<a name="line.1301"></a>
<FONT color="green">1302</FONT>            int len = searchStr.length();<a name="line.1302"></a>
<FONT color="green">1303</FONT>            int max = str.length() - len;<a name="line.1303"></a>
<FONT color="green">1304</FONT>            for (int i = 0; i &lt;= max; i++) {<a name="line.1304"></a>
<FONT color="green">1305</FONT>                if (str.regionMatches(true, i, searchStr, 0, len)) {<a name="line.1305"></a>
<FONT color="green">1306</FONT>                    return true;<a name="line.1306"></a>
<FONT color="green">1307</FONT>                }<a name="line.1307"></a>
<FONT color="green">1308</FONT>            }<a name="line.1308"></a>
<FONT color="green">1309</FONT>            return false;<a name="line.1309"></a>
<FONT color="green">1310</FONT>        }<a name="line.1310"></a>
<FONT color="green">1311</FONT>    <a name="line.1311"></a>
<FONT color="green">1312</FONT>        // IndexOfAny chars<a name="line.1312"></a>
<FONT color="green">1313</FONT>        //-----------------------------------------------------------------------<a name="line.1313"></a>
<FONT color="green">1314</FONT>        /**<a name="line.1314"></a>
<FONT color="green">1315</FONT>         * &lt;p&gt;Search a String to find the first index of any<a name="line.1315"></a>
<FONT color="green">1316</FONT>         * character in the given set of characters.&lt;/p&gt;<a name="line.1316"></a>
<FONT color="green">1317</FONT>         *<a name="line.1317"></a>
<FONT color="green">1318</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1318"></a>
<FONT color="green">1319</FONT>         * A &lt;code&gt;null&lt;/code&gt; or zero length search array will return &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.1319"></a>
<FONT color="green">1320</FONT>         *<a name="line.1320"></a>
<FONT color="green">1321</FONT>         * &lt;pre&gt;<a name="line.1321"></a>
<FONT color="green">1322</FONT>         * StringUtils.indexOfAny(null, *)                = -1<a name="line.1322"></a>
<FONT color="green">1323</FONT>         * StringUtils.indexOfAny("", *)                  = -1<a name="line.1323"></a>
<FONT color="green">1324</FONT>         * StringUtils.indexOfAny(*, null)                = -1<a name="line.1324"></a>
<FONT color="green">1325</FONT>         * StringUtils.indexOfAny(*, [])                  = -1<a name="line.1325"></a>
<FONT color="green">1326</FONT>         * StringUtils.indexOfAny("zzabyycdxx",['z','a']) = 0<a name="line.1326"></a>
<FONT color="green">1327</FONT>         * StringUtils.indexOfAny("zzabyycdxx",['b','y']) = 3<a name="line.1327"></a>
<FONT color="green">1328</FONT>         * StringUtils.indexOfAny("aba", ['z'])           = -1<a name="line.1328"></a>
<FONT color="green">1329</FONT>         * &lt;/pre&gt;<a name="line.1329"></a>
<FONT color="green">1330</FONT>         *<a name="line.1330"></a>
<FONT color="green">1331</FONT>         * @param str  the String to check, may be null<a name="line.1331"></a>
<FONT color="green">1332</FONT>         * @param searchChars  the chars to search for, may be null<a name="line.1332"></a>
<FONT color="green">1333</FONT>         * @return the index of any of the chars, -1 if no match or null input<a name="line.1333"></a>
<FONT color="green">1334</FONT>         * @since 2.0<a name="line.1334"></a>
<FONT color="green">1335</FONT>         */<a name="line.1335"></a>
<FONT color="green">1336</FONT>        public static int indexOfAny(String str, char[] searchChars) {<a name="line.1336"></a>
<FONT color="green">1337</FONT>            if (isEmpty(str) || ArrayUtils.isEmpty(searchChars)) {<a name="line.1337"></a>
<FONT color="green">1338</FONT>                return INDEX_NOT_FOUND;<a name="line.1338"></a>
<FONT color="green">1339</FONT>            }<a name="line.1339"></a>
<FONT color="green">1340</FONT>            int csLen = str.length();<a name="line.1340"></a>
<FONT color="green">1341</FONT>            int csLast = csLen - 1;<a name="line.1341"></a>
<FONT color="green">1342</FONT>            int searchLen = searchChars.length;<a name="line.1342"></a>
<FONT color="green">1343</FONT>            int searchLast = searchLen - 1;<a name="line.1343"></a>
<FONT color="green">1344</FONT>            for (int i = 0; i &lt; csLen; i++) {<a name="line.1344"></a>
<FONT color="green">1345</FONT>                char ch = str.charAt(i);<a name="line.1345"></a>
<FONT color="green">1346</FONT>                for (int j = 0; j &lt; searchLen; j++) {<a name="line.1346"></a>
<FONT color="green">1347</FONT>                    if (searchChars[j] == ch) {<a name="line.1347"></a>
<FONT color="green">1348</FONT>                        if (i &lt; csLast &amp;&amp; j &lt; searchLast &amp;&amp; CharUtils.isHighSurrogate(ch)) {<a name="line.1348"></a>
<FONT color="green">1349</FONT>                            // ch is a supplementary character<a name="line.1349"></a>
<FONT color="green">1350</FONT>                            if (searchChars[j + 1] == str.charAt(i + 1)) {<a name="line.1350"></a>
<FONT color="green">1351</FONT>                                return i;<a name="line.1351"></a>
<FONT color="green">1352</FONT>                            }<a name="line.1352"></a>
<FONT color="green">1353</FONT>                        } else {<a name="line.1353"></a>
<FONT color="green">1354</FONT>                            return i;<a name="line.1354"></a>
<FONT color="green">1355</FONT>                        }<a name="line.1355"></a>
<FONT color="green">1356</FONT>                    }<a name="line.1356"></a>
<FONT color="green">1357</FONT>                }<a name="line.1357"></a>
<FONT color="green">1358</FONT>            }<a name="line.1358"></a>
<FONT color="green">1359</FONT>            return INDEX_NOT_FOUND;<a name="line.1359"></a>
<FONT color="green">1360</FONT>        }<a name="line.1360"></a>
<FONT color="green">1361</FONT>    <a name="line.1361"></a>
<FONT color="green">1362</FONT>        /**<a name="line.1362"></a>
<FONT color="green">1363</FONT>         * &lt;p&gt;Search a String to find the first index of any<a name="line.1363"></a>
<FONT color="green">1364</FONT>         * character in the given set of characters.&lt;/p&gt;<a name="line.1364"></a>
<FONT color="green">1365</FONT>         *<a name="line.1365"></a>
<FONT color="green">1366</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1366"></a>
<FONT color="green">1367</FONT>         * A &lt;code&gt;null&lt;/code&gt; search string will return &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.1367"></a>
<FONT color="green">1368</FONT>         *<a name="line.1368"></a>
<FONT color="green">1369</FONT>         * &lt;pre&gt;<a name="line.1369"></a>
<FONT color="green">1370</FONT>         * StringUtils.indexOfAny(null, *)            = -1<a name="line.1370"></a>
<FONT color="green">1371</FONT>         * StringUtils.indexOfAny("", *)              = -1<a name="line.1371"></a>
<FONT color="green">1372</FONT>         * StringUtils.indexOfAny(*, null)            = -1<a name="line.1372"></a>
<FONT color="green">1373</FONT>         * StringUtils.indexOfAny(*, "")              = -1<a name="line.1373"></a>
<FONT color="green">1374</FONT>         * StringUtils.indexOfAny("zzabyycdxx", "za") = 0<a name="line.1374"></a>
<FONT color="green">1375</FONT>         * StringUtils.indexOfAny("zzabyycdxx", "by") = 3<a name="line.1375"></a>
<FONT color="green">1376</FONT>         * StringUtils.indexOfAny("aba","z")          = -1<a name="line.1376"></a>
<FONT color="green">1377</FONT>         * &lt;/pre&gt;<a name="line.1377"></a>
<FONT color="green">1378</FONT>         *<a name="line.1378"></a>
<FONT color="green">1379</FONT>         * @param str  the String to check, may be null<a name="line.1379"></a>
<FONT color="green">1380</FONT>         * @param searchChars  the chars to search for, may be null<a name="line.1380"></a>
<FONT color="green">1381</FONT>         * @return the index of any of the chars, -1 if no match or null input<a name="line.1381"></a>
<FONT color="green">1382</FONT>         * @since 2.0<a name="line.1382"></a>
<FONT color="green">1383</FONT>         */<a name="line.1383"></a>
<FONT color="green">1384</FONT>        public static int indexOfAny(String str, String searchChars) {<a name="line.1384"></a>
<FONT color="green">1385</FONT>            if (isEmpty(str) || isEmpty(searchChars)) {<a name="line.1385"></a>
<FONT color="green">1386</FONT>                return INDEX_NOT_FOUND;<a name="line.1386"></a>
<FONT color="green">1387</FONT>            }<a name="line.1387"></a>
<FONT color="green">1388</FONT>            return indexOfAny(str, searchChars.toCharArray());<a name="line.1388"></a>
<FONT color="green">1389</FONT>        }<a name="line.1389"></a>
<FONT color="green">1390</FONT>    <a name="line.1390"></a>
<FONT color="green">1391</FONT>        // ContainsAny<a name="line.1391"></a>
<FONT color="green">1392</FONT>        //-----------------------------------------------------------------------<a name="line.1392"></a>
<FONT color="green">1393</FONT>        /**<a name="line.1393"></a>
<FONT color="green">1394</FONT>         * &lt;p&gt;Checks if the String contains any character in the given<a name="line.1394"></a>
<FONT color="green">1395</FONT>         * set of characters.&lt;/p&gt;<a name="line.1395"></a>
<FONT color="green">1396</FONT>         *<a name="line.1396"></a>
<FONT color="green">1397</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;false&lt;/code&gt;.<a name="line.1397"></a>
<FONT color="green">1398</FONT>         * A &lt;code&gt;null&lt;/code&gt; or zero length search array will return &lt;code&gt;false&lt;/code&gt;.&lt;/p&gt;<a name="line.1398"></a>
<FONT color="green">1399</FONT>         *<a name="line.1399"></a>
<FONT color="green">1400</FONT>         * &lt;pre&gt;<a name="line.1400"></a>
<FONT color="green">1401</FONT>         * StringUtils.containsAny(null, *)                = false<a name="line.1401"></a>
<FONT color="green">1402</FONT>         * StringUtils.containsAny("", *)                  = false<a name="line.1402"></a>
<FONT color="green">1403</FONT>         * StringUtils.containsAny(*, null)                = false<a name="line.1403"></a>
<FONT color="green">1404</FONT>         * StringUtils.containsAny(*, [])                  = false<a name="line.1404"></a>
<FONT color="green">1405</FONT>         * StringUtils.containsAny("zzabyycdxx",['z','a']) = true<a name="line.1405"></a>
<FONT color="green">1406</FONT>         * StringUtils.containsAny("zzabyycdxx",['b','y']) = true<a name="line.1406"></a>
<FONT color="green">1407</FONT>         * StringUtils.containsAny("aba", ['z'])           = false<a name="line.1407"></a>
<FONT color="green">1408</FONT>         * &lt;/pre&gt;<a name="line.1408"></a>
<FONT color="green">1409</FONT>         *<a name="line.1409"></a>
<FONT color="green">1410</FONT>         * @param str  the String to check, may be null<a name="line.1410"></a>
<FONT color="green">1411</FONT>         * @param searchChars  the chars to search for, may be null<a name="line.1411"></a>
<FONT color="green">1412</FONT>         * @return the &lt;code&gt;true&lt;/code&gt; if any of the chars are found,<a name="line.1412"></a>
<FONT color="green">1413</FONT>         * &lt;code&gt;false&lt;/code&gt; if no match or null input<a name="line.1413"></a>
<FONT color="green">1414</FONT>         * @since 2.4<a name="line.1414"></a>
<FONT color="green">1415</FONT>         */<a name="line.1415"></a>
<FONT color="green">1416</FONT>        public static boolean containsAny(String str, char[] searchChars) {<a name="line.1416"></a>
<FONT color="green">1417</FONT>            if (isEmpty(str) || ArrayUtils.isEmpty(searchChars)) {<a name="line.1417"></a>
<FONT color="green">1418</FONT>                return false;<a name="line.1418"></a>
<FONT color="green">1419</FONT>            }<a name="line.1419"></a>
<FONT color="green">1420</FONT>            int csLength = str.length();<a name="line.1420"></a>
<FONT color="green">1421</FONT>            int searchLength = searchChars.length;<a name="line.1421"></a>
<FONT color="green">1422</FONT>            int csLast = csLength - 1;<a name="line.1422"></a>
<FONT color="green">1423</FONT>            int searchLast = searchLength - 1;<a name="line.1423"></a>
<FONT color="green">1424</FONT>            for (int i = 0; i &lt; csLength; i++) {<a name="line.1424"></a>
<FONT color="green">1425</FONT>                char ch = str.charAt(i);<a name="line.1425"></a>
<FONT color="green">1426</FONT>                for (int j = 0; j &lt; searchLength; j++) {<a name="line.1426"></a>
<FONT color="green">1427</FONT>                    if (searchChars[j] == ch) {<a name="line.1427"></a>
<FONT color="green">1428</FONT>                        if (CharUtils.isHighSurrogate(ch)) {<a name="line.1428"></a>
<FONT color="green">1429</FONT>                            if (j == searchLast) {<a name="line.1429"></a>
<FONT color="green">1430</FONT>                                // missing low surrogate, fine, like String.indexOf(String)<a name="line.1430"></a>
<FONT color="green">1431</FONT>                                return true;<a name="line.1431"></a>
<FONT color="green">1432</FONT>                            }<a name="line.1432"></a>
<FONT color="green">1433</FONT>                            if (i &lt; csLast &amp;&amp; searchChars[j + 1] == str.charAt(i + 1)) {<a name="line.1433"></a>
<FONT color="green">1434</FONT>                                return true;<a name="line.1434"></a>
<FONT color="green">1435</FONT>                            }<a name="line.1435"></a>
<FONT color="green">1436</FONT>                        } else {<a name="line.1436"></a>
<FONT color="green">1437</FONT>                            // ch is in the Basic Multilingual Plane<a name="line.1437"></a>
<FONT color="green">1438</FONT>                            return true;<a name="line.1438"></a>
<FONT color="green">1439</FONT>                        }<a name="line.1439"></a>
<FONT color="green">1440</FONT>                    }<a name="line.1440"></a>
<FONT color="green">1441</FONT>                }<a name="line.1441"></a>
<FONT color="green">1442</FONT>            }<a name="line.1442"></a>
<FONT color="green">1443</FONT>            return false;<a name="line.1443"></a>
<FONT color="green">1444</FONT>        }<a name="line.1444"></a>
<FONT color="green">1445</FONT>    <a name="line.1445"></a>
<FONT color="green">1446</FONT>        /**<a name="line.1446"></a>
<FONT color="green">1447</FONT>         * &lt;p&gt;<a name="line.1447"></a>
<FONT color="green">1448</FONT>         * Checks if the String contains any character in the given set of characters.<a name="line.1448"></a>
<FONT color="green">1449</FONT>         * &lt;/p&gt;<a name="line.1449"></a>
<FONT color="green">1450</FONT>         * <a name="line.1450"></a>
<FONT color="green">1451</FONT>         * &lt;p&gt;<a name="line.1451"></a>
<FONT color="green">1452</FONT>         * A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;false&lt;/code&gt;. A &lt;code&gt;null&lt;/code&gt; search string will return<a name="line.1452"></a>
<FONT color="green">1453</FONT>         * &lt;code&gt;false&lt;/code&gt;.<a name="line.1453"></a>
<FONT color="green">1454</FONT>         * &lt;/p&gt;<a name="line.1454"></a>
<FONT color="green">1455</FONT>         * <a name="line.1455"></a>
<FONT color="green">1456</FONT>         * &lt;pre&gt;<a name="line.1456"></a>
<FONT color="green">1457</FONT>         * StringUtils.containsAny(null, *)            = false<a name="line.1457"></a>
<FONT color="green">1458</FONT>         * StringUtils.containsAny("", *)              = false<a name="line.1458"></a>
<FONT color="green">1459</FONT>         * StringUtils.containsAny(*, null)            = false<a name="line.1459"></a>
<FONT color="green">1460</FONT>         * StringUtils.containsAny(*, "")              = false<a name="line.1460"></a>
<FONT color="green">1461</FONT>         * StringUtils.containsAny("zzabyycdxx", "za") = true<a name="line.1461"></a>
<FONT color="green">1462</FONT>         * StringUtils.containsAny("zzabyycdxx", "by") = true<a name="line.1462"></a>
<FONT color="green">1463</FONT>         * StringUtils.containsAny("aba","z")          = false<a name="line.1463"></a>
<FONT color="green">1464</FONT>         * &lt;/pre&gt;<a name="line.1464"></a>
<FONT color="green">1465</FONT>         * <a name="line.1465"></a>
<FONT color="green">1466</FONT>         * @param str<a name="line.1466"></a>
<FONT color="green">1467</FONT>         *            the String to check, may be null<a name="line.1467"></a>
<FONT color="green">1468</FONT>         * @param searchChars<a name="line.1468"></a>
<FONT color="green">1469</FONT>         *            the chars to search for, may be null<a name="line.1469"></a>
<FONT color="green">1470</FONT>         * @return the &lt;code&gt;true&lt;/code&gt; if any of the chars are found, &lt;code&gt;false&lt;/code&gt; if no match or null input<a name="line.1470"></a>
<FONT color="green">1471</FONT>         * @since 2.4<a name="line.1471"></a>
<FONT color="green">1472</FONT>         */<a name="line.1472"></a>
<FONT color="green">1473</FONT>        public static boolean containsAny(String str, String searchChars) {<a name="line.1473"></a>
<FONT color="green">1474</FONT>            if (searchChars == null) {<a name="line.1474"></a>
<FONT color="green">1475</FONT>                return false;<a name="line.1475"></a>
<FONT color="green">1476</FONT>            }<a name="line.1476"></a>
<FONT color="green">1477</FONT>            return containsAny(str, searchChars.toCharArray());<a name="line.1477"></a>
<FONT color="green">1478</FONT>        }<a name="line.1478"></a>
<FONT color="green">1479</FONT>    <a name="line.1479"></a>
<FONT color="green">1480</FONT>        // IndexOfAnyBut chars<a name="line.1480"></a>
<FONT color="green">1481</FONT>        //-----------------------------------------------------------------------<a name="line.1481"></a>
<FONT color="green">1482</FONT>        /**<a name="line.1482"></a>
<FONT color="green">1483</FONT>         * &lt;p&gt;Search a String to find the first index of any<a name="line.1483"></a>
<FONT color="green">1484</FONT>         * character not in the given set of characters.&lt;/p&gt;<a name="line.1484"></a>
<FONT color="green">1485</FONT>         *<a name="line.1485"></a>
<FONT color="green">1486</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1486"></a>
<FONT color="green">1487</FONT>         * A &lt;code&gt;null&lt;/code&gt; or zero length search array will return &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.1487"></a>
<FONT color="green">1488</FONT>         *<a name="line.1488"></a>
<FONT color="green">1489</FONT>         * &lt;pre&gt;<a name="line.1489"></a>
<FONT color="green">1490</FONT>         * StringUtils.indexOfAnyBut(null, *)                              = -1<a name="line.1490"></a>
<FONT color="green">1491</FONT>         * StringUtils.indexOfAnyBut("", *)                                = -1<a name="line.1491"></a>
<FONT color="green">1492</FONT>         * StringUtils.indexOfAnyBut(*, null)                              = -1<a name="line.1492"></a>
<FONT color="green">1493</FONT>         * StringUtils.indexOfAnyBut(*, [])                                = -1<a name="line.1493"></a>
<FONT color="green">1494</FONT>         * StringUtils.indexOfAnyBut("zzabyycdxx", new char[] {'z', 'a'} ) = 3<a name="line.1494"></a>
<FONT color="green">1495</FONT>         * StringUtils.indexOfAnyBut("aba", new char[] {'z'} )             = 0<a name="line.1495"></a>
<FONT color="green">1496</FONT>         * StringUtils.indexOfAnyBut("aba", new char[] {'a', 'b'} )        = -1<a name="line.1496"></a>
<FONT color="green">1497</FONT>         * &lt;/pre&gt;<a name="line.1497"></a>
<FONT color="green">1498</FONT>         *<a name="line.1498"></a>
<FONT color="green">1499</FONT>         * @param str  the String to check, may be null<a name="line.1499"></a>
<FONT color="green">1500</FONT>         * @param searchChars  the chars to search for, may be null<a name="line.1500"></a>
<FONT color="green">1501</FONT>         * @return the index of any of the chars, -1 if no match or null input<a name="line.1501"></a>
<FONT color="green">1502</FONT>         * @since 2.0<a name="line.1502"></a>
<FONT color="green">1503</FONT>         */<a name="line.1503"></a>
<FONT color="green">1504</FONT>        public static int indexOfAnyBut(String str, char[] searchChars) {<a name="line.1504"></a>
<FONT color="green">1505</FONT>            if (isEmpty(str) || ArrayUtils.isEmpty(searchChars)) {<a name="line.1505"></a>
<FONT color="green">1506</FONT>                return INDEX_NOT_FOUND;<a name="line.1506"></a>
<FONT color="green">1507</FONT>            }<a name="line.1507"></a>
<FONT color="green">1508</FONT>            int csLen = str.length();<a name="line.1508"></a>
<FONT color="green">1509</FONT>            int csLast = csLen - 1;<a name="line.1509"></a>
<FONT color="green">1510</FONT>            int searchLen = searchChars.length;<a name="line.1510"></a>
<FONT color="green">1511</FONT>            int searchLast = searchLen - 1;<a name="line.1511"></a>
<FONT color="green">1512</FONT>            outer:<a name="line.1512"></a>
<FONT color="green">1513</FONT>            for (int i = 0; i &lt; csLen; i++) {<a name="line.1513"></a>
<FONT color="green">1514</FONT>                char ch = str.charAt(i);<a name="line.1514"></a>
<FONT color="green">1515</FONT>                for (int j = 0; j &lt; searchLen; j++) {<a name="line.1515"></a>
<FONT color="green">1516</FONT>                    if (searchChars[j] == ch) {<a name="line.1516"></a>
<FONT color="green">1517</FONT>                        if (i &lt; csLast &amp;&amp; j &lt; searchLast &amp;&amp; CharUtils.isHighSurrogate(ch)) {<a name="line.1517"></a>
<FONT color="green">1518</FONT>                            if (searchChars[j + 1] == str.charAt(i + 1)) {<a name="line.1518"></a>
<FONT color="green">1519</FONT>                                continue outer;<a name="line.1519"></a>
<FONT color="green">1520</FONT>                            }<a name="line.1520"></a>
<FONT color="green">1521</FONT>                        } else {<a name="line.1521"></a>
<FONT color="green">1522</FONT>                            continue outer;<a name="line.1522"></a>
<FONT color="green">1523</FONT>                        }<a name="line.1523"></a>
<FONT color="green">1524</FONT>                    }<a name="line.1524"></a>
<FONT color="green">1525</FONT>                }<a name="line.1525"></a>
<FONT color="green">1526</FONT>                return i;<a name="line.1526"></a>
<FONT color="green">1527</FONT>            }<a name="line.1527"></a>
<FONT color="green">1528</FONT>            return INDEX_NOT_FOUND;<a name="line.1528"></a>
<FONT color="green">1529</FONT>        }<a name="line.1529"></a>
<FONT color="green">1530</FONT>    <a name="line.1530"></a>
<FONT color="green">1531</FONT>        /**<a name="line.1531"></a>
<FONT color="green">1532</FONT>         * &lt;p&gt;Search a String to find the first index of any<a name="line.1532"></a>
<FONT color="green">1533</FONT>         * character not in the given set of characters.&lt;/p&gt;<a name="line.1533"></a>
<FONT color="green">1534</FONT>         *<a name="line.1534"></a>
<FONT color="green">1535</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1535"></a>
<FONT color="green">1536</FONT>         * A &lt;code&gt;null&lt;/code&gt; or empty search string will return &lt;code&gt;-1&lt;/code&gt;.&lt;/p&gt;<a name="line.1536"></a>
<FONT color="green">1537</FONT>         *<a name="line.1537"></a>
<FONT color="green">1538</FONT>         * &lt;pre&gt;<a name="line.1538"></a>
<FONT color="green">1539</FONT>         * StringUtils.indexOfAnyBut(null, *)            = -1<a name="line.1539"></a>
<FONT color="green">1540</FONT>         * StringUtils.indexOfAnyBut("", *)              = -1<a name="line.1540"></a>
<FONT color="green">1541</FONT>         * StringUtils.indexOfAnyBut(*, null)            = -1<a name="line.1541"></a>
<FONT color="green">1542</FONT>         * StringUtils.indexOfAnyBut(*, "")              = -1<a name="line.1542"></a>
<FONT color="green">1543</FONT>         * StringUtils.indexOfAnyBut("zzabyycdxx", "za") = 3<a name="line.1543"></a>
<FONT color="green">1544</FONT>         * StringUtils.indexOfAnyBut("zzabyycdxx", "")   = -1<a name="line.1544"></a>
<FONT color="green">1545</FONT>         * StringUtils.indexOfAnyBut("aba","ab")         = -1<a name="line.1545"></a>
<FONT color="green">1546</FONT>         * &lt;/pre&gt;<a name="line.1546"></a>
<FONT color="green">1547</FONT>         *<a name="line.1547"></a>
<FONT color="green">1548</FONT>         * @param str  the String to check, may be null<a name="line.1548"></a>
<FONT color="green">1549</FONT>         * @param searchChars  the chars to search for, may be null<a name="line.1549"></a>
<FONT color="green">1550</FONT>         * @return the index of any of the chars, -1 if no match or null input<a name="line.1550"></a>
<FONT color="green">1551</FONT>         * @since 2.0<a name="line.1551"></a>
<FONT color="green">1552</FONT>         */<a name="line.1552"></a>
<FONT color="green">1553</FONT>        public static int indexOfAnyBut(String str, String searchChars) {<a name="line.1553"></a>
<FONT color="green">1554</FONT>            if (isEmpty(str) || isEmpty(searchChars)) {<a name="line.1554"></a>
<FONT color="green">1555</FONT>                return INDEX_NOT_FOUND;<a name="line.1555"></a>
<FONT color="green">1556</FONT>            }<a name="line.1556"></a>
<FONT color="green">1557</FONT>            int strLen = str.length();<a name="line.1557"></a>
<FONT color="green">1558</FONT>            for (int i = 0; i &lt; strLen; i++) {<a name="line.1558"></a>
<FONT color="green">1559</FONT>                char ch = str.charAt(i);<a name="line.1559"></a>
<FONT color="green">1560</FONT>                boolean chFound = searchChars.indexOf(ch) &gt;= 0;<a name="line.1560"></a>
<FONT color="green">1561</FONT>                if (i + 1 &lt; strLen &amp;&amp; CharUtils.isHighSurrogate(ch)) {<a name="line.1561"></a>
<FONT color="green">1562</FONT>                    char ch2 = str.charAt(i + 1);<a name="line.1562"></a>
<FONT color="green">1563</FONT>                    if (chFound &amp;&amp; searchChars.indexOf(ch2) &lt; 0) {<a name="line.1563"></a>
<FONT color="green">1564</FONT>                        return i;<a name="line.1564"></a>
<FONT color="green">1565</FONT>                    }<a name="line.1565"></a>
<FONT color="green">1566</FONT>                } else {<a name="line.1566"></a>
<FONT color="green">1567</FONT>                    if (!chFound) {<a name="line.1567"></a>
<FONT color="green">1568</FONT>                        return i;<a name="line.1568"></a>
<FONT color="green">1569</FONT>                    }<a name="line.1569"></a>
<FONT color="green">1570</FONT>                }<a name="line.1570"></a>
<FONT color="green">1571</FONT>            }<a name="line.1571"></a>
<FONT color="green">1572</FONT>            return INDEX_NOT_FOUND;<a name="line.1572"></a>
<FONT color="green">1573</FONT>        }<a name="line.1573"></a>
<FONT color="green">1574</FONT>    <a name="line.1574"></a>
<FONT color="green">1575</FONT>        // ContainsOnly<a name="line.1575"></a>
<FONT color="green">1576</FONT>        //-----------------------------------------------------------------------<a name="line.1576"></a>
<FONT color="green">1577</FONT>        /**<a name="line.1577"></a>
<FONT color="green">1578</FONT>         * &lt;p&gt;Checks if the String contains only certain characters.&lt;/p&gt;<a name="line.1578"></a>
<FONT color="green">1579</FONT>         *<a name="line.1579"></a>
<FONT color="green">1580</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;false&lt;/code&gt;.<a name="line.1580"></a>
<FONT color="green">1581</FONT>         * A &lt;code&gt;null&lt;/code&gt; valid character array will return &lt;code&gt;false&lt;/code&gt;.<a name="line.1581"></a>
<FONT color="green">1582</FONT>         * An empty String (length()=0) always returns &lt;code&gt;true&lt;/code&gt;.&lt;/p&gt;<a name="line.1582"></a>
<FONT color="green">1583</FONT>         *<a name="line.1583"></a>
<FONT color="green">1584</FONT>         * &lt;pre&gt;<a name="line.1584"></a>
<FONT color="green">1585</FONT>         * StringUtils.containsOnly(null, *)       = false<a name="line.1585"></a>
<FONT color="green">1586</FONT>         * StringUtils.containsOnly(*, null)       = false<a name="line.1586"></a>
<FONT color="green">1587</FONT>         * StringUtils.containsOnly("", *)         = true<a name="line.1587"></a>
<FONT color="green">1588</FONT>         * StringUtils.containsOnly("ab", '')      = false<a name="line.1588"></a>
<FONT color="green">1589</FONT>         * StringUtils.containsOnly("abab", 'abc') = true<a name="line.1589"></a>
<FONT color="green">1590</FONT>         * StringUtils.containsOnly("ab1", 'abc')  = false<a name="line.1590"></a>
<FONT color="green">1591</FONT>         * StringUtils.containsOnly("abz", 'abc')  = false<a name="line.1591"></a>
<FONT color="green">1592</FONT>         * &lt;/pre&gt;<a name="line.1592"></a>
<FONT color="green">1593</FONT>         *<a name="line.1593"></a>
<FONT color="green">1594</FONT>         * @param str  the String to check, may be null<a name="line.1594"></a>
<FONT color="green">1595</FONT>         * @param valid  an array of valid chars, may be null<a name="line.1595"></a>
<FONT color="green">1596</FONT>         * @return true if it only contains valid chars and is non-null<a name="line.1596"></a>
<FONT color="green">1597</FONT>         */<a name="line.1597"></a>
<FONT color="green">1598</FONT>        public static boolean containsOnly(String str, char[] valid) {<a name="line.1598"></a>
<FONT color="green">1599</FONT>            // All these pre-checks are to maintain API with an older version<a name="line.1599"></a>
<FONT color="green">1600</FONT>            if ((valid == null) || (str == null)) {<a name="line.1600"></a>
<FONT color="green">1601</FONT>                return false;<a name="line.1601"></a>
<FONT color="green">1602</FONT>            }<a name="line.1602"></a>
<FONT color="green">1603</FONT>            if (str.length() == 0) {<a name="line.1603"></a>
<FONT color="green">1604</FONT>                return true;<a name="line.1604"></a>
<FONT color="green">1605</FONT>            }<a name="line.1605"></a>
<FONT color="green">1606</FONT>            if (valid.length == 0) {<a name="line.1606"></a>
<FONT color="green">1607</FONT>                return false;<a name="line.1607"></a>
<FONT color="green">1608</FONT>            }<a name="line.1608"></a>
<FONT color="green">1609</FONT>            return indexOfAnyBut(str, valid) == INDEX_NOT_FOUND;<a name="line.1609"></a>
<FONT color="green">1610</FONT>        }<a name="line.1610"></a>
<FONT color="green">1611</FONT>    <a name="line.1611"></a>
<FONT color="green">1612</FONT>        /**<a name="line.1612"></a>
<FONT color="green">1613</FONT>         * &lt;p&gt;Checks if the String contains only certain characters.&lt;/p&gt;<a name="line.1613"></a>
<FONT color="green">1614</FONT>         *<a name="line.1614"></a>
<FONT color="green">1615</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;false&lt;/code&gt;.<a name="line.1615"></a>
<FONT color="green">1616</FONT>         * A &lt;code&gt;null&lt;/code&gt; valid character String will return &lt;code&gt;false&lt;/code&gt;.<a name="line.1616"></a>
<FONT color="green">1617</FONT>         * An empty String (length()=0) always returns &lt;code&gt;true&lt;/code&gt;.&lt;/p&gt;<a name="line.1617"></a>
<FONT color="green">1618</FONT>         *<a name="line.1618"></a>
<FONT color="green">1619</FONT>         * &lt;pre&gt;<a name="line.1619"></a>
<FONT color="green">1620</FONT>         * StringUtils.containsOnly(null, *)       = false<a name="line.1620"></a>
<FONT color="green">1621</FONT>         * StringUtils.containsOnly(*, null)       = false<a name="line.1621"></a>
<FONT color="green">1622</FONT>         * StringUtils.containsOnly("", *)         = true<a name="line.1622"></a>
<FONT color="green">1623</FONT>         * StringUtils.containsOnly("ab", "")      = false<a name="line.1623"></a>
<FONT color="green">1624</FONT>         * StringUtils.containsOnly("abab", "abc") = true<a name="line.1624"></a>
<FONT color="green">1625</FONT>         * StringUtils.containsOnly("ab1", "abc")  = false<a name="line.1625"></a>
<FONT color="green">1626</FONT>         * StringUtils.containsOnly("abz", "abc")  = false<a name="line.1626"></a>
<FONT color="green">1627</FONT>         * &lt;/pre&gt;<a name="line.1627"></a>
<FONT color="green">1628</FONT>         *<a name="line.1628"></a>
<FONT color="green">1629</FONT>         * @param str  the String to check, may be null<a name="line.1629"></a>
<FONT color="green">1630</FONT>         * @param validChars  a String of valid chars, may be null<a name="line.1630"></a>
<FONT color="green">1631</FONT>         * @return true if it only contains valid chars and is non-null<a name="line.1631"></a>
<FONT color="green">1632</FONT>         * @since 2.0<a name="line.1632"></a>
<FONT color="green">1633</FONT>         */<a name="line.1633"></a>
<FONT color="green">1634</FONT>        public static boolean containsOnly(String str, String validChars) {<a name="line.1634"></a>
<FONT color="green">1635</FONT>            if (str == null || validChars == null) {<a name="line.1635"></a>
<FONT color="green">1636</FONT>                return false;<a name="line.1636"></a>
<FONT color="green">1637</FONT>            }<a name="line.1637"></a>
<FONT color="green">1638</FONT>            return containsOnly(str, validChars.toCharArray());<a name="line.1638"></a>
<FONT color="green">1639</FONT>        }<a name="line.1639"></a>
<FONT color="green">1640</FONT>    <a name="line.1640"></a>
<FONT color="green">1641</FONT>        // ContainsNone<a name="line.1641"></a>
<FONT color="green">1642</FONT>        //-----------------------------------------------------------------------<a name="line.1642"></a>
<FONT color="green">1643</FONT>        /**<a name="line.1643"></a>
<FONT color="green">1644</FONT>         * &lt;p&gt;Checks that the String does not contain certain characters.&lt;/p&gt;<a name="line.1644"></a>
<FONT color="green">1645</FONT>         *<a name="line.1645"></a>
<FONT color="green">1646</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;true&lt;/code&gt;.<a name="line.1646"></a>
<FONT color="green">1647</FONT>         * A &lt;code&gt;null&lt;/code&gt; invalid character array will return &lt;code&gt;true&lt;/code&gt;.<a name="line.1647"></a>
<FONT color="green">1648</FONT>         * An empty String (length()=0) always returns true.&lt;/p&gt;<a name="line.1648"></a>
<FONT color="green">1649</FONT>         *<a name="line.1649"></a>
<FONT color="green">1650</FONT>         * &lt;pre&gt;<a name="line.1650"></a>
<FONT color="green">1651</FONT>         * StringUtils.containsNone(null, *)       = true<a name="line.1651"></a>
<FONT color="green">1652</FONT>         * StringUtils.containsNone(*, null)       = true<a name="line.1652"></a>
<FONT color="green">1653</FONT>         * StringUtils.containsNone("", *)         = true<a name="line.1653"></a>
<FONT color="green">1654</FONT>         * StringUtils.containsNone("ab", '')      = true<a name="line.1654"></a>
<FONT color="green">1655</FONT>         * StringUtils.containsNone("abab", 'xyz') = true<a name="line.1655"></a>
<FONT color="green">1656</FONT>         * StringUtils.containsNone("ab1", 'xyz')  = true<a name="line.1656"></a>
<FONT color="green">1657</FONT>         * StringUtils.containsNone("abz", 'xyz')  = false<a name="line.1657"></a>
<FONT color="green">1658</FONT>         * &lt;/pre&gt;<a name="line.1658"></a>
<FONT color="green">1659</FONT>         *<a name="line.1659"></a>
<FONT color="green">1660</FONT>         * @param str  the String to check, may be null<a name="line.1660"></a>
<FONT color="green">1661</FONT>         * @param searchChars  an array of invalid chars, may be null<a name="line.1661"></a>
<FONT color="green">1662</FONT>         * @return true if it contains none of the invalid chars, or is null<a name="line.1662"></a>
<FONT color="green">1663</FONT>         * @since 2.0<a name="line.1663"></a>
<FONT color="green">1664</FONT>         */<a name="line.1664"></a>
<FONT color="green">1665</FONT>        public static boolean containsNone(String str, char[] searchChars) {<a name="line.1665"></a>
<FONT color="green">1666</FONT>            if (str == null || searchChars == null) {<a name="line.1666"></a>
<FONT color="green">1667</FONT>                return true;<a name="line.1667"></a>
<FONT color="green">1668</FONT>            }<a name="line.1668"></a>
<FONT color="green">1669</FONT>            int csLen = str.length();<a name="line.1669"></a>
<FONT color="green">1670</FONT>            int csLast = csLen - 1;<a name="line.1670"></a>
<FONT color="green">1671</FONT>            int searchLen = searchChars.length;<a name="line.1671"></a>
<FONT color="green">1672</FONT>            int searchLast = searchLen - 1;<a name="line.1672"></a>
<FONT color="green">1673</FONT>            for (int i = 0; i &lt; csLen; i++) {<a name="line.1673"></a>
<FONT color="green">1674</FONT>                char ch = str.charAt(i);<a name="line.1674"></a>
<FONT color="green">1675</FONT>                for (int j = 0; j &lt; searchLen; j++) {<a name="line.1675"></a>
<FONT color="green">1676</FONT>                    if (searchChars[j] == ch) {<a name="line.1676"></a>
<FONT color="green">1677</FONT>                        if (CharUtils.isHighSurrogate(ch)) {<a name="line.1677"></a>
<FONT color="green">1678</FONT>                            if (j == searchLast) {<a name="line.1678"></a>
<FONT color="green">1679</FONT>                                // missing low surrogate, fine, like String.indexOf(String)<a name="line.1679"></a>
<FONT color="green">1680</FONT>                                return false;<a name="line.1680"></a>
<FONT color="green">1681</FONT>                            }<a name="line.1681"></a>
<FONT color="green">1682</FONT>                            if (i &lt; csLast &amp;&amp; searchChars[j + 1] == str.charAt(i + 1)) {<a name="line.1682"></a>
<FONT color="green">1683</FONT>                                return false;<a name="line.1683"></a>
<FONT color="green">1684</FONT>                            }<a name="line.1684"></a>
<FONT color="green">1685</FONT>                        } else {<a name="line.1685"></a>
<FONT color="green">1686</FONT>                            // ch is in the Basic Multilingual Plane<a name="line.1686"></a>
<FONT color="green">1687</FONT>                            return false;<a name="line.1687"></a>
<FONT color="green">1688</FONT>                        }<a name="line.1688"></a>
<FONT color="green">1689</FONT>                    }<a name="line.1689"></a>
<FONT color="green">1690</FONT>                }<a name="line.1690"></a>
<FONT color="green">1691</FONT>            }<a name="line.1691"></a>
<FONT color="green">1692</FONT>            return true;<a name="line.1692"></a>
<FONT color="green">1693</FONT>        }<a name="line.1693"></a>
<FONT color="green">1694</FONT>    <a name="line.1694"></a>
<FONT color="green">1695</FONT>        /**<a name="line.1695"></a>
<FONT color="green">1696</FONT>         * &lt;p&gt;Checks that the String does not contain certain characters.&lt;/p&gt;<a name="line.1696"></a>
<FONT color="green">1697</FONT>         *<a name="line.1697"></a>
<FONT color="green">1698</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;true&lt;/code&gt;.<a name="line.1698"></a>
<FONT color="green">1699</FONT>         * A &lt;code&gt;null&lt;/code&gt; invalid character array will return &lt;code&gt;true&lt;/code&gt;.<a name="line.1699"></a>
<FONT color="green">1700</FONT>         * An empty String ("") always returns true.&lt;/p&gt;<a name="line.1700"></a>
<FONT color="green">1701</FONT>         *<a name="line.1701"></a>
<FONT color="green">1702</FONT>         * &lt;pre&gt;<a name="line.1702"></a>
<FONT color="green">1703</FONT>         * StringUtils.containsNone(null, *)       = true<a name="line.1703"></a>
<FONT color="green">1704</FONT>         * StringUtils.containsNone(*, null)       = true<a name="line.1704"></a>
<FONT color="green">1705</FONT>         * StringUtils.containsNone("", *)         = true<a name="line.1705"></a>
<FONT color="green">1706</FONT>         * StringUtils.containsNone("ab", "")      = true<a name="line.1706"></a>
<FONT color="green">1707</FONT>         * StringUtils.containsNone("abab", "xyz") = true<a name="line.1707"></a>
<FONT color="green">1708</FONT>         * StringUtils.containsNone("ab1", "xyz")  = true<a name="line.1708"></a>
<FONT color="green">1709</FONT>         * StringUtils.containsNone("abz", "xyz")  = false<a name="line.1709"></a>
<FONT color="green">1710</FONT>         * &lt;/pre&gt;<a name="line.1710"></a>
<FONT color="green">1711</FONT>         *<a name="line.1711"></a>
<FONT color="green">1712</FONT>         * @param str  the String to check, may be null<a name="line.1712"></a>
<FONT color="green">1713</FONT>         * @param invalidChars  a String of invalid chars, may be null<a name="line.1713"></a>
<FONT color="green">1714</FONT>         * @return true if it contains none of the invalid chars, or is null<a name="line.1714"></a>
<FONT color="green">1715</FONT>         * @since 2.0<a name="line.1715"></a>
<FONT color="green">1716</FONT>         */<a name="line.1716"></a>
<FONT color="green">1717</FONT>        public static boolean containsNone(String str, String invalidChars) {<a name="line.1717"></a>
<FONT color="green">1718</FONT>            if (str == null || invalidChars == null) {<a name="line.1718"></a>
<FONT color="green">1719</FONT>                return true;<a name="line.1719"></a>
<FONT color="green">1720</FONT>            }<a name="line.1720"></a>
<FONT color="green">1721</FONT>            return containsNone(str, invalidChars.toCharArray());<a name="line.1721"></a>
<FONT color="green">1722</FONT>        }<a name="line.1722"></a>
<FONT color="green">1723</FONT>    <a name="line.1723"></a>
<FONT color="green">1724</FONT>        // IndexOfAny strings<a name="line.1724"></a>
<FONT color="green">1725</FONT>        //-----------------------------------------------------------------------<a name="line.1725"></a>
<FONT color="green">1726</FONT>        /**<a name="line.1726"></a>
<FONT color="green">1727</FONT>         * &lt;p&gt;Find the first index of any of a set of potential substrings.&lt;/p&gt;<a name="line.1727"></a>
<FONT color="green">1728</FONT>         *<a name="line.1728"></a>
<FONT color="green">1729</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1729"></a>
<FONT color="green">1730</FONT>         * A &lt;code&gt;null&lt;/code&gt; or zero length search array will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1730"></a>
<FONT color="green">1731</FONT>         * A &lt;code&gt;null&lt;/code&gt; search array entry will be ignored, but a search<a name="line.1731"></a>
<FONT color="green">1732</FONT>         * array containing "" will return &lt;code&gt;0&lt;/code&gt; if &lt;code&gt;str&lt;/code&gt; is not<a name="line.1732"></a>
<FONT color="green">1733</FONT>         * null. This method uses {@link String#indexOf(String)}.&lt;/p&gt;<a name="line.1733"></a>
<FONT color="green">1734</FONT>         *<a name="line.1734"></a>
<FONT color="green">1735</FONT>         * &lt;pre&gt;<a name="line.1735"></a>
<FONT color="green">1736</FONT>         * StringUtils.indexOfAny(null, *)                     = -1<a name="line.1736"></a>
<FONT color="green">1737</FONT>         * StringUtils.indexOfAny(*, null)                     = -1<a name="line.1737"></a>
<FONT color="green">1738</FONT>         * StringUtils.indexOfAny(*, [])                       = -1<a name="line.1738"></a>
<FONT color="green">1739</FONT>         * StringUtils.indexOfAny("zzabyycdxx", ["ab","cd"])   = 2<a name="line.1739"></a>
<FONT color="green">1740</FONT>         * StringUtils.indexOfAny("zzabyycdxx", ["cd","ab"])   = 2<a name="line.1740"></a>
<FONT color="green">1741</FONT>         * StringUtils.indexOfAny("zzabyycdxx", ["mn","op"])   = -1<a name="line.1741"></a>
<FONT color="green">1742</FONT>         * StringUtils.indexOfAny("zzabyycdxx", ["zab","aby"]) = 1<a name="line.1742"></a>
<FONT color="green">1743</FONT>         * StringUtils.indexOfAny("zzabyycdxx", [""])          = 0<a name="line.1743"></a>
<FONT color="green">1744</FONT>         * StringUtils.indexOfAny("", [""])                    = 0<a name="line.1744"></a>
<FONT color="green">1745</FONT>         * StringUtils.indexOfAny("", ["a"])                   = -1<a name="line.1745"></a>
<FONT color="green">1746</FONT>         * &lt;/pre&gt;<a name="line.1746"></a>
<FONT color="green">1747</FONT>         *<a name="line.1747"></a>
<FONT color="green">1748</FONT>         * @param str  the String to check, may be null<a name="line.1748"></a>
<FONT color="green">1749</FONT>         * @param searchStrs  the Strings to search for, may be null<a name="line.1749"></a>
<FONT color="green">1750</FONT>         * @return the first index of any of the searchStrs in str, -1 if no match<a name="line.1750"></a>
<FONT color="green">1751</FONT>         */<a name="line.1751"></a>
<FONT color="green">1752</FONT>        public static int indexOfAny(String str, String[] searchStrs) {<a name="line.1752"></a>
<FONT color="green">1753</FONT>            if ((str == null) || (searchStrs == null)) {<a name="line.1753"></a>
<FONT color="green">1754</FONT>                return INDEX_NOT_FOUND;<a name="line.1754"></a>
<FONT color="green">1755</FONT>            }<a name="line.1755"></a>
<FONT color="green">1756</FONT>            int sz = searchStrs.length;<a name="line.1756"></a>
<FONT color="green">1757</FONT>    <a name="line.1757"></a>
<FONT color="green">1758</FONT>            // String's can't have a MAX_VALUEth index.<a name="line.1758"></a>
<FONT color="green">1759</FONT>            int ret = Integer.MAX_VALUE;<a name="line.1759"></a>
<FONT color="green">1760</FONT>    <a name="line.1760"></a>
<FONT color="green">1761</FONT>            int tmp = 0;<a name="line.1761"></a>
<FONT color="green">1762</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.1762"></a>
<FONT color="green">1763</FONT>                String search = searchStrs[i];<a name="line.1763"></a>
<FONT color="green">1764</FONT>                if (search == null) {<a name="line.1764"></a>
<FONT color="green">1765</FONT>                    continue;<a name="line.1765"></a>
<FONT color="green">1766</FONT>                }<a name="line.1766"></a>
<FONT color="green">1767</FONT>                tmp = str.indexOf(search);<a name="line.1767"></a>
<FONT color="green">1768</FONT>                if (tmp == INDEX_NOT_FOUND) {<a name="line.1768"></a>
<FONT color="green">1769</FONT>                    continue;<a name="line.1769"></a>
<FONT color="green">1770</FONT>                }<a name="line.1770"></a>
<FONT color="green">1771</FONT>    <a name="line.1771"></a>
<FONT color="green">1772</FONT>                if (tmp &lt; ret) {<a name="line.1772"></a>
<FONT color="green">1773</FONT>                    ret = tmp;<a name="line.1773"></a>
<FONT color="green">1774</FONT>                }<a name="line.1774"></a>
<FONT color="green">1775</FONT>            }<a name="line.1775"></a>
<FONT color="green">1776</FONT>    <a name="line.1776"></a>
<FONT color="green">1777</FONT>            return (ret == Integer.MAX_VALUE) ? INDEX_NOT_FOUND : ret;<a name="line.1777"></a>
<FONT color="green">1778</FONT>        }<a name="line.1778"></a>
<FONT color="green">1779</FONT>    <a name="line.1779"></a>
<FONT color="green">1780</FONT>        /**<a name="line.1780"></a>
<FONT color="green">1781</FONT>         * &lt;p&gt;Find the latest index of any of a set of potential substrings.&lt;/p&gt;<a name="line.1781"></a>
<FONT color="green">1782</FONT>         *<a name="line.1782"></a>
<FONT color="green">1783</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1783"></a>
<FONT color="green">1784</FONT>         * A &lt;code&gt;null&lt;/code&gt; search array will return &lt;code&gt;-1&lt;/code&gt;.<a name="line.1784"></a>
<FONT color="green">1785</FONT>         * A &lt;code&gt;null&lt;/code&gt; or zero length search array entry will be ignored,<a name="line.1785"></a>
<FONT color="green">1786</FONT>         * but a search array containing "" will return the length of &lt;code&gt;str&lt;/code&gt;<a name="line.1786"></a>
<FONT color="green">1787</FONT>         * if &lt;code&gt;str&lt;/code&gt; is not null. This method uses {@link String#indexOf(String)}&lt;/p&gt;<a name="line.1787"></a>
<FONT color="green">1788</FONT>         *<a name="line.1788"></a>
<FONT color="green">1789</FONT>         * &lt;pre&gt;<a name="line.1789"></a>
<FONT color="green">1790</FONT>         * StringUtils.lastIndexOfAny(null, *)                   = -1<a name="line.1790"></a>
<FONT color="green">1791</FONT>         * StringUtils.lastIndexOfAny(*, null)                   = -1<a name="line.1791"></a>
<FONT color="green">1792</FONT>         * StringUtils.lastIndexOfAny(*, [])                     = -1<a name="line.1792"></a>
<FONT color="green">1793</FONT>         * StringUtils.lastIndexOfAny(*, [null])                 = -1<a name="line.1793"></a>
<FONT color="green">1794</FONT>         * StringUtils.lastIndexOfAny("zzabyycdxx", ["ab","cd"]) = 6<a name="line.1794"></a>
<FONT color="green">1795</FONT>         * StringUtils.lastIndexOfAny("zzabyycdxx", ["cd","ab"]) = 6<a name="line.1795"></a>
<FONT color="green">1796</FONT>         * StringUtils.lastIndexOfAny("zzabyycdxx", ["mn","op"]) = -1<a name="line.1796"></a>
<FONT color="green">1797</FONT>         * StringUtils.lastIndexOfAny("zzabyycdxx", ["mn","op"]) = -1<a name="line.1797"></a>
<FONT color="green">1798</FONT>         * StringUtils.lastIndexOfAny("zzabyycdxx", ["mn",""])   = 10<a name="line.1798"></a>
<FONT color="green">1799</FONT>         * &lt;/pre&gt;<a name="line.1799"></a>
<FONT color="green">1800</FONT>         *<a name="line.1800"></a>
<FONT color="green">1801</FONT>         * @param str  the String to check, may be null<a name="line.1801"></a>
<FONT color="green">1802</FONT>         * @param searchStrs  the Strings to search for, may be null<a name="line.1802"></a>
<FONT color="green">1803</FONT>         * @return the last index of any of the Strings, -1 if no match<a name="line.1803"></a>
<FONT color="green">1804</FONT>         */<a name="line.1804"></a>
<FONT color="green">1805</FONT>        public static int lastIndexOfAny(String str, String[] searchStrs) {<a name="line.1805"></a>
<FONT color="green">1806</FONT>            if ((str == null) || (searchStrs == null)) {<a name="line.1806"></a>
<FONT color="green">1807</FONT>                return INDEX_NOT_FOUND;<a name="line.1807"></a>
<FONT color="green">1808</FONT>            }<a name="line.1808"></a>
<FONT color="green">1809</FONT>            int sz = searchStrs.length;<a name="line.1809"></a>
<FONT color="green">1810</FONT>            int ret = INDEX_NOT_FOUND;<a name="line.1810"></a>
<FONT color="green">1811</FONT>            int tmp = 0;<a name="line.1811"></a>
<FONT color="green">1812</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.1812"></a>
<FONT color="green">1813</FONT>                String search = searchStrs[i];<a name="line.1813"></a>
<FONT color="green">1814</FONT>                if (search == null) {<a name="line.1814"></a>
<FONT color="green">1815</FONT>                    continue;<a name="line.1815"></a>
<FONT color="green">1816</FONT>                }<a name="line.1816"></a>
<FONT color="green">1817</FONT>                tmp = str.lastIndexOf(search);<a name="line.1817"></a>
<FONT color="green">1818</FONT>                if (tmp &gt; ret) {<a name="line.1818"></a>
<FONT color="green">1819</FONT>                    ret = tmp;<a name="line.1819"></a>
<FONT color="green">1820</FONT>                }<a name="line.1820"></a>
<FONT color="green">1821</FONT>            }<a name="line.1821"></a>
<FONT color="green">1822</FONT>            return ret;<a name="line.1822"></a>
<FONT color="green">1823</FONT>        }<a name="line.1823"></a>
<FONT color="green">1824</FONT>    <a name="line.1824"></a>
<FONT color="green">1825</FONT>        // Substring<a name="line.1825"></a>
<FONT color="green">1826</FONT>        //-----------------------------------------------------------------------<a name="line.1826"></a>
<FONT color="green">1827</FONT>        /**<a name="line.1827"></a>
<FONT color="green">1828</FONT>         * &lt;p&gt;Gets a substring from the specified String avoiding exceptions.&lt;/p&gt;<a name="line.1828"></a>
<FONT color="green">1829</FONT>         *<a name="line.1829"></a>
<FONT color="green">1830</FONT>         * &lt;p&gt;A negative start position can be used to start &lt;code&gt;n&lt;/code&gt;<a name="line.1830"></a>
<FONT color="green">1831</FONT>         * characters from the end of the String.&lt;/p&gt;<a name="line.1831"></a>
<FONT color="green">1832</FONT>         *<a name="line.1832"></a>
<FONT color="green">1833</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String will return &lt;code&gt;null&lt;/code&gt;.<a name="line.1833"></a>
<FONT color="green">1834</FONT>         * An empty ("") String will return "".&lt;/p&gt;<a name="line.1834"></a>
<FONT color="green">1835</FONT>         *<a name="line.1835"></a>
<FONT color="green">1836</FONT>         * &lt;pre&gt;<a name="line.1836"></a>
<FONT color="green">1837</FONT>         * StringUtils.substring(null, *)   = null<a name="line.1837"></a>
<FONT color="green">1838</FONT>         * StringUtils.substring("", *)     = ""<a name="line.1838"></a>
<FONT color="green">1839</FONT>         * StringUtils.substring("abc", 0)  = "abc"<a name="line.1839"></a>
<FONT color="green">1840</FONT>         * StringUtils.substring("abc", 2)  = "c"<a name="line.1840"></a>
<FONT color="green">1841</FONT>         * StringUtils.substring("abc", 4)  = ""<a name="line.1841"></a>
<FONT color="green">1842</FONT>         * StringUtils.substring("abc", -2) = "bc"<a name="line.1842"></a>
<FONT color="green">1843</FONT>         * StringUtils.substring("abc", -4) = "abc"<a name="line.1843"></a>
<FONT color="green">1844</FONT>         * &lt;/pre&gt;<a name="line.1844"></a>
<FONT color="green">1845</FONT>         *<a name="line.1845"></a>
<FONT color="green">1846</FONT>         * @param str  the String to get the substring from, may be null<a name="line.1846"></a>
<FONT color="green">1847</FONT>         * @param start  the position to start from, negative means<a name="line.1847"></a>
<FONT color="green">1848</FONT>         *  count back from the end of the String by this many characters<a name="line.1848"></a>
<FONT color="green">1849</FONT>         * @return substring from start position, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.1849"></a>
<FONT color="green">1850</FONT>         */<a name="line.1850"></a>
<FONT color="green">1851</FONT>        public static String substring(String str, int start) {<a name="line.1851"></a>
<FONT color="green">1852</FONT>            if (str == null) {<a name="line.1852"></a>
<FONT color="green">1853</FONT>                return null;<a name="line.1853"></a>
<FONT color="green">1854</FONT>            }<a name="line.1854"></a>
<FONT color="green">1855</FONT>    <a name="line.1855"></a>
<FONT color="green">1856</FONT>            // handle negatives, which means last n characters<a name="line.1856"></a>
<FONT color="green">1857</FONT>            if (start &lt; 0) {<a name="line.1857"></a>
<FONT color="green">1858</FONT>                start = str.length() + start; // remember start is negative<a name="line.1858"></a>
<FONT color="green">1859</FONT>            }<a name="line.1859"></a>
<FONT color="green">1860</FONT>    <a name="line.1860"></a>
<FONT color="green">1861</FONT>            if (start &lt; 0) {<a name="line.1861"></a>
<FONT color="green">1862</FONT>                start = 0;<a name="line.1862"></a>
<FONT color="green">1863</FONT>            }<a name="line.1863"></a>
<FONT color="green">1864</FONT>            if (start &gt; str.length()) {<a name="line.1864"></a>
<FONT color="green">1865</FONT>                return EMPTY;<a name="line.1865"></a>
<FONT color="green">1866</FONT>            }<a name="line.1866"></a>
<FONT color="green">1867</FONT>    <a name="line.1867"></a>
<FONT color="green">1868</FONT>            return str.substring(start);<a name="line.1868"></a>
<FONT color="green">1869</FONT>        }<a name="line.1869"></a>
<FONT color="green">1870</FONT>    <a name="line.1870"></a>
<FONT color="green">1871</FONT>        /**<a name="line.1871"></a>
<FONT color="green">1872</FONT>         * &lt;p&gt;Gets a substring from the specified String avoiding exceptions.&lt;/p&gt;<a name="line.1872"></a>
<FONT color="green">1873</FONT>         *<a name="line.1873"></a>
<FONT color="green">1874</FONT>         * &lt;p&gt;A negative start position can be used to start/end &lt;code&gt;n&lt;/code&gt;<a name="line.1874"></a>
<FONT color="green">1875</FONT>         * characters from the end of the String.&lt;/p&gt;<a name="line.1875"></a>
<FONT color="green">1876</FONT>         *<a name="line.1876"></a>
<FONT color="green">1877</FONT>         * &lt;p&gt;The returned substring starts with the character in the &lt;code&gt;start&lt;/code&gt;<a name="line.1877"></a>
<FONT color="green">1878</FONT>         * position and ends before the &lt;code&gt;end&lt;/code&gt; position. All position counting is<a name="line.1878"></a>
<FONT color="green">1879</FONT>         * zero-based -- i.e., to start at the beginning of the string use<a name="line.1879"></a>
<FONT color="green">1880</FONT>         * &lt;code&gt;start = 0&lt;/code&gt;. Negative start and end positions can be used to<a name="line.1880"></a>
<FONT color="green">1881</FONT>         * specify offsets relative to the end of the String.&lt;/p&gt;<a name="line.1881"></a>
<FONT color="green">1882</FONT>         *<a name="line.1882"></a>
<FONT color="green">1883</FONT>         * &lt;p&gt;If &lt;code&gt;start&lt;/code&gt; is not strictly to the left of &lt;code&gt;end&lt;/code&gt;, ""<a name="line.1883"></a>
<FONT color="green">1884</FONT>         * is returned.&lt;/p&gt;<a name="line.1884"></a>
<FONT color="green">1885</FONT>         *<a name="line.1885"></a>
<FONT color="green">1886</FONT>         * &lt;pre&gt;<a name="line.1886"></a>
<FONT color="green">1887</FONT>         * StringUtils.substring(null, *, *)    = null<a name="line.1887"></a>
<FONT color="green">1888</FONT>         * StringUtils.substring("", * ,  *)    = "";<a name="line.1888"></a>
<FONT color="green">1889</FONT>         * StringUtils.substring("abc", 0, 2)   = "ab"<a name="line.1889"></a>
<FONT color="green">1890</FONT>         * StringUtils.substring("abc", 2, 0)   = ""<a name="line.1890"></a>
<FONT color="green">1891</FONT>         * StringUtils.substring("abc", 2, 4)   = "c"<a name="line.1891"></a>
<FONT color="green">1892</FONT>         * StringUtils.substring("abc", 4, 6)   = ""<a name="line.1892"></a>
<FONT color="green">1893</FONT>         * StringUtils.substring("abc", 2, 2)   = ""<a name="line.1893"></a>
<FONT color="green">1894</FONT>         * StringUtils.substring("abc", -2, -1) = "b"<a name="line.1894"></a>
<FONT color="green">1895</FONT>         * StringUtils.substring("abc", -4, 2)  = "ab"<a name="line.1895"></a>
<FONT color="green">1896</FONT>         * &lt;/pre&gt;<a name="line.1896"></a>
<FONT color="green">1897</FONT>         *<a name="line.1897"></a>
<FONT color="green">1898</FONT>         * @param str  the String to get the substring from, may be null<a name="line.1898"></a>
<FONT color="green">1899</FONT>         * @param start  the position to start from, negative means<a name="line.1899"></a>
<FONT color="green">1900</FONT>         *  count back from the end of the String by this many characters<a name="line.1900"></a>
<FONT color="green">1901</FONT>         * @param end  the position to end at (exclusive), negative means<a name="line.1901"></a>
<FONT color="green">1902</FONT>         *  count back from the end of the String by this many characters<a name="line.1902"></a>
<FONT color="green">1903</FONT>         * @return substring from start position to end positon,<a name="line.1903"></a>
<FONT color="green">1904</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.1904"></a>
<FONT color="green">1905</FONT>         */<a name="line.1905"></a>
<FONT color="green">1906</FONT>        public static String substring(String str, int start, int end) {<a name="line.1906"></a>
<FONT color="green">1907</FONT>            if (str == null) {<a name="line.1907"></a>
<FONT color="green">1908</FONT>                return null;<a name="line.1908"></a>
<FONT color="green">1909</FONT>            }<a name="line.1909"></a>
<FONT color="green">1910</FONT>    <a name="line.1910"></a>
<FONT color="green">1911</FONT>            // handle negatives<a name="line.1911"></a>
<FONT color="green">1912</FONT>            if (end &lt; 0) {<a name="line.1912"></a>
<FONT color="green">1913</FONT>                end = str.length() + end; // remember end is negative<a name="line.1913"></a>
<FONT color="green">1914</FONT>            }<a name="line.1914"></a>
<FONT color="green">1915</FONT>            if (start &lt; 0) {<a name="line.1915"></a>
<FONT color="green">1916</FONT>                start = str.length() + start; // remember start is negative<a name="line.1916"></a>
<FONT color="green">1917</FONT>            }<a name="line.1917"></a>
<FONT color="green">1918</FONT>    <a name="line.1918"></a>
<FONT color="green">1919</FONT>            // check length next<a name="line.1919"></a>
<FONT color="green">1920</FONT>            if (end &gt; str.length()) {<a name="line.1920"></a>
<FONT color="green">1921</FONT>                end = str.length();<a name="line.1921"></a>
<FONT color="green">1922</FONT>            }<a name="line.1922"></a>
<FONT color="green">1923</FONT>    <a name="line.1923"></a>
<FONT color="green">1924</FONT>            // if start is greater than end, return ""<a name="line.1924"></a>
<FONT color="green">1925</FONT>            if (start &gt; end) {<a name="line.1925"></a>
<FONT color="green">1926</FONT>                return EMPTY;<a name="line.1926"></a>
<FONT color="green">1927</FONT>            }<a name="line.1927"></a>
<FONT color="green">1928</FONT>    <a name="line.1928"></a>
<FONT color="green">1929</FONT>            if (start &lt; 0) {<a name="line.1929"></a>
<FONT color="green">1930</FONT>                start = 0;<a name="line.1930"></a>
<FONT color="green">1931</FONT>            }<a name="line.1931"></a>
<FONT color="green">1932</FONT>            if (end &lt; 0) {<a name="line.1932"></a>
<FONT color="green">1933</FONT>                end = 0;<a name="line.1933"></a>
<FONT color="green">1934</FONT>            }<a name="line.1934"></a>
<FONT color="green">1935</FONT>    <a name="line.1935"></a>
<FONT color="green">1936</FONT>            return str.substring(start, end);<a name="line.1936"></a>
<FONT color="green">1937</FONT>        }<a name="line.1937"></a>
<FONT color="green">1938</FONT>    <a name="line.1938"></a>
<FONT color="green">1939</FONT>        // Left/Right/Mid<a name="line.1939"></a>
<FONT color="green">1940</FONT>        //-----------------------------------------------------------------------<a name="line.1940"></a>
<FONT color="green">1941</FONT>        /**<a name="line.1941"></a>
<FONT color="green">1942</FONT>         * &lt;p&gt;Gets the leftmost &lt;code&gt;len&lt;/code&gt; characters of a String.&lt;/p&gt;<a name="line.1942"></a>
<FONT color="green">1943</FONT>         *<a name="line.1943"></a>
<FONT color="green">1944</FONT>         * &lt;p&gt;If &lt;code&gt;len&lt;/code&gt; characters are not available, or the<a name="line.1944"></a>
<FONT color="green">1945</FONT>         * String is &lt;code&gt;null&lt;/code&gt;, the String will be returned without<a name="line.1945"></a>
<FONT color="green">1946</FONT>         * an exception. An empty String is returned if len is negative.&lt;/p&gt;<a name="line.1946"></a>
<FONT color="green">1947</FONT>         *<a name="line.1947"></a>
<FONT color="green">1948</FONT>         * &lt;pre&gt;<a name="line.1948"></a>
<FONT color="green">1949</FONT>         * StringUtils.left(null, *)    = null<a name="line.1949"></a>
<FONT color="green">1950</FONT>         * StringUtils.left(*, -ve)     = ""<a name="line.1950"></a>
<FONT color="green">1951</FONT>         * StringUtils.left("", *)      = ""<a name="line.1951"></a>
<FONT color="green">1952</FONT>         * StringUtils.left("abc", 0)   = ""<a name="line.1952"></a>
<FONT color="green">1953</FONT>         * StringUtils.left("abc", 2)   = "ab"<a name="line.1953"></a>
<FONT color="green">1954</FONT>         * StringUtils.left("abc", 4)   = "abc"<a name="line.1954"></a>
<FONT color="green">1955</FONT>         * &lt;/pre&gt;<a name="line.1955"></a>
<FONT color="green">1956</FONT>         *<a name="line.1956"></a>
<FONT color="green">1957</FONT>         * @param str  the String to get the leftmost characters from, may be null<a name="line.1957"></a>
<FONT color="green">1958</FONT>         * @param len  the length of the required String<a name="line.1958"></a>
<FONT color="green">1959</FONT>         * @return the leftmost characters, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.1959"></a>
<FONT color="green">1960</FONT>         */<a name="line.1960"></a>
<FONT color="green">1961</FONT>        public static String left(String str, int len) {<a name="line.1961"></a>
<FONT color="green">1962</FONT>            if (str == null) {<a name="line.1962"></a>
<FONT color="green">1963</FONT>                return null;<a name="line.1963"></a>
<FONT color="green">1964</FONT>            }<a name="line.1964"></a>
<FONT color="green">1965</FONT>            if (len &lt; 0) {<a name="line.1965"></a>
<FONT color="green">1966</FONT>                return EMPTY;<a name="line.1966"></a>
<FONT color="green">1967</FONT>            }<a name="line.1967"></a>
<FONT color="green">1968</FONT>            if (str.length() &lt;= len) {<a name="line.1968"></a>
<FONT color="green">1969</FONT>                return str;<a name="line.1969"></a>
<FONT color="green">1970</FONT>            }<a name="line.1970"></a>
<FONT color="green">1971</FONT>            return str.substring(0, len);<a name="line.1971"></a>
<FONT color="green">1972</FONT>        }<a name="line.1972"></a>
<FONT color="green">1973</FONT>    <a name="line.1973"></a>
<FONT color="green">1974</FONT>        /**<a name="line.1974"></a>
<FONT color="green">1975</FONT>         * &lt;p&gt;Gets the rightmost &lt;code&gt;len&lt;/code&gt; characters of a String.&lt;/p&gt;<a name="line.1975"></a>
<FONT color="green">1976</FONT>         *<a name="line.1976"></a>
<FONT color="green">1977</FONT>         * &lt;p&gt;If &lt;code&gt;len&lt;/code&gt; characters are not available, or the String<a name="line.1977"></a>
<FONT color="green">1978</FONT>         * is &lt;code&gt;null&lt;/code&gt;, the String will be returned without an<a name="line.1978"></a>
<FONT color="green">1979</FONT>         * an exception. An empty String is returned if len is negative.&lt;/p&gt;<a name="line.1979"></a>
<FONT color="green">1980</FONT>         *<a name="line.1980"></a>
<FONT color="green">1981</FONT>         * &lt;pre&gt;<a name="line.1981"></a>
<FONT color="green">1982</FONT>         * StringUtils.right(null, *)    = null<a name="line.1982"></a>
<FONT color="green">1983</FONT>         * StringUtils.right(*, -ve)     = ""<a name="line.1983"></a>
<FONT color="green">1984</FONT>         * StringUtils.right("", *)      = ""<a name="line.1984"></a>
<FONT color="green">1985</FONT>         * StringUtils.right("abc", 0)   = ""<a name="line.1985"></a>
<FONT color="green">1986</FONT>         * StringUtils.right("abc", 2)   = "bc"<a name="line.1986"></a>
<FONT color="green">1987</FONT>         * StringUtils.right("abc", 4)   = "abc"<a name="line.1987"></a>
<FONT color="green">1988</FONT>         * &lt;/pre&gt;<a name="line.1988"></a>
<FONT color="green">1989</FONT>         *<a name="line.1989"></a>
<FONT color="green">1990</FONT>         * @param str  the String to get the rightmost characters from, may be null<a name="line.1990"></a>
<FONT color="green">1991</FONT>         * @param len  the length of the required String<a name="line.1991"></a>
<FONT color="green">1992</FONT>         * @return the rightmost characters, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.1992"></a>
<FONT color="green">1993</FONT>         */<a name="line.1993"></a>
<FONT color="green">1994</FONT>        public static String right(String str, int len) {<a name="line.1994"></a>
<FONT color="green">1995</FONT>            if (str == null) {<a name="line.1995"></a>
<FONT color="green">1996</FONT>                return null;<a name="line.1996"></a>
<FONT color="green">1997</FONT>            }<a name="line.1997"></a>
<FONT color="green">1998</FONT>            if (len &lt; 0) {<a name="line.1998"></a>
<FONT color="green">1999</FONT>                return EMPTY;<a name="line.1999"></a>
<FONT color="green">2000</FONT>            }<a name="line.2000"></a>
<FONT color="green">2001</FONT>            if (str.length() &lt;= len) {<a name="line.2001"></a>
<FONT color="green">2002</FONT>                return str;<a name="line.2002"></a>
<FONT color="green">2003</FONT>            }<a name="line.2003"></a>
<FONT color="green">2004</FONT>            return str.substring(str.length() - len);<a name="line.2004"></a>
<FONT color="green">2005</FONT>        }<a name="line.2005"></a>
<FONT color="green">2006</FONT>    <a name="line.2006"></a>
<FONT color="green">2007</FONT>        /**<a name="line.2007"></a>
<FONT color="green">2008</FONT>         * &lt;p&gt;Gets &lt;code&gt;len&lt;/code&gt; characters from the middle of a String.&lt;/p&gt;<a name="line.2008"></a>
<FONT color="green">2009</FONT>         *<a name="line.2009"></a>
<FONT color="green">2010</FONT>         * &lt;p&gt;If &lt;code&gt;len&lt;/code&gt; characters are not available, the remainder<a name="line.2010"></a>
<FONT color="green">2011</FONT>         * of the String will be returned without an exception. If the<a name="line.2011"></a>
<FONT color="green">2012</FONT>         * String is &lt;code&gt;null&lt;/code&gt;, &lt;code&gt;null&lt;/code&gt; will be returned.<a name="line.2012"></a>
<FONT color="green">2013</FONT>         * An empty String is returned if len is negative or exceeds the<a name="line.2013"></a>
<FONT color="green">2014</FONT>         * length of &lt;code&gt;str&lt;/code&gt;.&lt;/p&gt;<a name="line.2014"></a>
<FONT color="green">2015</FONT>         *<a name="line.2015"></a>
<FONT color="green">2016</FONT>         * &lt;pre&gt;<a name="line.2016"></a>
<FONT color="green">2017</FONT>         * StringUtils.mid(null, *, *)    = null<a name="line.2017"></a>
<FONT color="green">2018</FONT>         * StringUtils.mid(*, *, -ve)     = ""<a name="line.2018"></a>
<FONT color="green">2019</FONT>         * StringUtils.mid("", 0, *)      = ""<a name="line.2019"></a>
<FONT color="green">2020</FONT>         * StringUtils.mid("abc", 0, 2)   = "ab"<a name="line.2020"></a>
<FONT color="green">2021</FONT>         * StringUtils.mid("abc", 0, 4)   = "abc"<a name="line.2021"></a>
<FONT color="green">2022</FONT>         * StringUtils.mid("abc", 2, 4)   = "c"<a name="line.2022"></a>
<FONT color="green">2023</FONT>         * StringUtils.mid("abc", 4, 2)   = ""<a name="line.2023"></a>
<FONT color="green">2024</FONT>         * StringUtils.mid("abc", -2, 2)  = "ab"<a name="line.2024"></a>
<FONT color="green">2025</FONT>         * &lt;/pre&gt;<a name="line.2025"></a>
<FONT color="green">2026</FONT>         *<a name="line.2026"></a>
<FONT color="green">2027</FONT>         * @param str  the String to get the characters from, may be null<a name="line.2027"></a>
<FONT color="green">2028</FONT>         * @param pos  the position to start from, negative treated as zero<a name="line.2028"></a>
<FONT color="green">2029</FONT>         * @param len  the length of the required String<a name="line.2029"></a>
<FONT color="green">2030</FONT>         * @return the middle characters, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2030"></a>
<FONT color="green">2031</FONT>         */<a name="line.2031"></a>
<FONT color="green">2032</FONT>        public static String mid(String str, int pos, int len) {<a name="line.2032"></a>
<FONT color="green">2033</FONT>            if (str == null) {<a name="line.2033"></a>
<FONT color="green">2034</FONT>                return null;<a name="line.2034"></a>
<FONT color="green">2035</FONT>            }<a name="line.2035"></a>
<FONT color="green">2036</FONT>            if (len &lt; 0 || pos &gt; str.length()) {<a name="line.2036"></a>
<FONT color="green">2037</FONT>                return EMPTY;<a name="line.2037"></a>
<FONT color="green">2038</FONT>            }<a name="line.2038"></a>
<FONT color="green">2039</FONT>            if (pos &lt; 0) {<a name="line.2039"></a>
<FONT color="green">2040</FONT>                pos = 0;<a name="line.2040"></a>
<FONT color="green">2041</FONT>            }<a name="line.2041"></a>
<FONT color="green">2042</FONT>            if (str.length() &lt;= (pos + len)) {<a name="line.2042"></a>
<FONT color="green">2043</FONT>                return str.substring(pos);<a name="line.2043"></a>
<FONT color="green">2044</FONT>            }<a name="line.2044"></a>
<FONT color="green">2045</FONT>            return str.substring(pos, pos + len);<a name="line.2045"></a>
<FONT color="green">2046</FONT>        }<a name="line.2046"></a>
<FONT color="green">2047</FONT>    <a name="line.2047"></a>
<FONT color="green">2048</FONT>        // SubStringAfter/SubStringBefore<a name="line.2048"></a>
<FONT color="green">2049</FONT>        //-----------------------------------------------------------------------<a name="line.2049"></a>
<FONT color="green">2050</FONT>        /**<a name="line.2050"></a>
<FONT color="green">2051</FONT>         * &lt;p&gt;Gets the substring before the first occurrence of a separator.<a name="line.2051"></a>
<FONT color="green">2052</FONT>         * The separator is not returned.&lt;/p&gt;<a name="line.2052"></a>
<FONT color="green">2053</FONT>         *<a name="line.2053"></a>
<FONT color="green">2054</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; string input will return &lt;code&gt;null&lt;/code&gt;.<a name="line.2054"></a>
<FONT color="green">2055</FONT>         * An empty ("") string input will return the empty string.<a name="line.2055"></a>
<FONT color="green">2056</FONT>         * A &lt;code&gt;null&lt;/code&gt; separator will return the input string.&lt;/p&gt;<a name="line.2056"></a>
<FONT color="green">2057</FONT>         *<a name="line.2057"></a>
<FONT color="green">2058</FONT>         * &lt;p&gt;If nothing is found, the string input is returned.&lt;/p&gt;<a name="line.2058"></a>
<FONT color="green">2059</FONT>         *<a name="line.2059"></a>
<FONT color="green">2060</FONT>         * &lt;pre&gt;<a name="line.2060"></a>
<FONT color="green">2061</FONT>         * StringUtils.substringBefore(null, *)      = null<a name="line.2061"></a>
<FONT color="green">2062</FONT>         * StringUtils.substringBefore("", *)        = ""<a name="line.2062"></a>
<FONT color="green">2063</FONT>         * StringUtils.substringBefore("abc", "a")   = ""<a name="line.2063"></a>
<FONT color="green">2064</FONT>         * StringUtils.substringBefore("abcba", "b") = "a"<a name="line.2064"></a>
<FONT color="green">2065</FONT>         * StringUtils.substringBefore("abc", "c")   = "ab"<a name="line.2065"></a>
<FONT color="green">2066</FONT>         * StringUtils.substringBefore("abc", "d")   = "abc"<a name="line.2066"></a>
<FONT color="green">2067</FONT>         * StringUtils.substringBefore("abc", "")    = ""<a name="line.2067"></a>
<FONT color="green">2068</FONT>         * StringUtils.substringBefore("abc", null)  = "abc"<a name="line.2068"></a>
<FONT color="green">2069</FONT>         * &lt;/pre&gt;<a name="line.2069"></a>
<FONT color="green">2070</FONT>         *<a name="line.2070"></a>
<FONT color="green">2071</FONT>         * @param str  the String to get a substring from, may be null<a name="line.2071"></a>
<FONT color="green">2072</FONT>         * @param separator  the String to search for, may be null<a name="line.2072"></a>
<FONT color="green">2073</FONT>         * @return the substring before the first occurrence of the separator,<a name="line.2073"></a>
<FONT color="green">2074</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2074"></a>
<FONT color="green">2075</FONT>         * @since 2.0<a name="line.2075"></a>
<FONT color="green">2076</FONT>         */<a name="line.2076"></a>
<FONT color="green">2077</FONT>        public static String substringBefore(String str, String separator) {<a name="line.2077"></a>
<FONT color="green">2078</FONT>            if (isEmpty(str) || separator == null) {<a name="line.2078"></a>
<FONT color="green">2079</FONT>                return str;<a name="line.2079"></a>
<FONT color="green">2080</FONT>            }<a name="line.2080"></a>
<FONT color="green">2081</FONT>            if (separator.length() == 0) {<a name="line.2081"></a>
<FONT color="green">2082</FONT>                return EMPTY;<a name="line.2082"></a>
<FONT color="green">2083</FONT>            }<a name="line.2083"></a>
<FONT color="green">2084</FONT>            int pos = str.indexOf(separator);<a name="line.2084"></a>
<FONT color="green">2085</FONT>            if (pos == INDEX_NOT_FOUND) {<a name="line.2085"></a>
<FONT color="green">2086</FONT>                return str;<a name="line.2086"></a>
<FONT color="green">2087</FONT>            }<a name="line.2087"></a>
<FONT color="green">2088</FONT>            return str.substring(0, pos);<a name="line.2088"></a>
<FONT color="green">2089</FONT>        }<a name="line.2089"></a>
<FONT color="green">2090</FONT>    <a name="line.2090"></a>
<FONT color="green">2091</FONT>        /**<a name="line.2091"></a>
<FONT color="green">2092</FONT>         * &lt;p&gt;Gets the substring after the first occurrence of a separator.<a name="line.2092"></a>
<FONT color="green">2093</FONT>         * The separator is not returned.&lt;/p&gt;<a name="line.2093"></a>
<FONT color="green">2094</FONT>         *<a name="line.2094"></a>
<FONT color="green">2095</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; string input will return &lt;code&gt;null&lt;/code&gt;.<a name="line.2095"></a>
<FONT color="green">2096</FONT>         * An empty ("") string input will return the empty string.<a name="line.2096"></a>
<FONT color="green">2097</FONT>         * A &lt;code&gt;null&lt;/code&gt; separator will return the empty string if the<a name="line.2097"></a>
<FONT color="green">2098</FONT>         * input string is not &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.2098"></a>
<FONT color="green">2099</FONT>         *<a name="line.2099"></a>
<FONT color="green">2100</FONT>         * &lt;p&gt;If nothing is found, the empty string is returned.&lt;/p&gt;<a name="line.2100"></a>
<FONT color="green">2101</FONT>         *<a name="line.2101"></a>
<FONT color="green">2102</FONT>         * &lt;pre&gt;<a name="line.2102"></a>
<FONT color="green">2103</FONT>         * StringUtils.substringAfter(null, *)      = null<a name="line.2103"></a>
<FONT color="green">2104</FONT>         * StringUtils.substringAfter("", *)        = ""<a name="line.2104"></a>
<FONT color="green">2105</FONT>         * StringUtils.substringAfter(*, null)      = ""<a name="line.2105"></a>
<FONT color="green">2106</FONT>         * StringUtils.substringAfter("abc", "a")   = "bc"<a name="line.2106"></a>
<FONT color="green">2107</FONT>         * StringUtils.substringAfter("abcba", "b") = "cba"<a name="line.2107"></a>
<FONT color="green">2108</FONT>         * StringUtils.substringAfter("abc", "c")   = ""<a name="line.2108"></a>
<FONT color="green">2109</FONT>         * StringUtils.substringAfter("abc", "d")   = ""<a name="line.2109"></a>
<FONT color="green">2110</FONT>         * StringUtils.substringAfter("abc", "")    = "abc"<a name="line.2110"></a>
<FONT color="green">2111</FONT>         * &lt;/pre&gt;<a name="line.2111"></a>
<FONT color="green">2112</FONT>         *<a name="line.2112"></a>
<FONT color="green">2113</FONT>         * @param str  the String to get a substring from, may be null<a name="line.2113"></a>
<FONT color="green">2114</FONT>         * @param separator  the String to search for, may be null<a name="line.2114"></a>
<FONT color="green">2115</FONT>         * @return the substring after the first occurrence of the separator,<a name="line.2115"></a>
<FONT color="green">2116</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2116"></a>
<FONT color="green">2117</FONT>         * @since 2.0<a name="line.2117"></a>
<FONT color="green">2118</FONT>         */<a name="line.2118"></a>
<FONT color="green">2119</FONT>        public static String substringAfter(String str, String separator) {<a name="line.2119"></a>
<FONT color="green">2120</FONT>            if (isEmpty(str)) {<a name="line.2120"></a>
<FONT color="green">2121</FONT>                return str;<a name="line.2121"></a>
<FONT color="green">2122</FONT>            }<a name="line.2122"></a>
<FONT color="green">2123</FONT>            if (separator == null) {<a name="line.2123"></a>
<FONT color="green">2124</FONT>                return EMPTY;<a name="line.2124"></a>
<FONT color="green">2125</FONT>            }<a name="line.2125"></a>
<FONT color="green">2126</FONT>            int pos = str.indexOf(separator);<a name="line.2126"></a>
<FONT color="green">2127</FONT>            if (pos == INDEX_NOT_FOUND) {<a name="line.2127"></a>
<FONT color="green">2128</FONT>                return EMPTY;<a name="line.2128"></a>
<FONT color="green">2129</FONT>            }<a name="line.2129"></a>
<FONT color="green">2130</FONT>            return str.substring(pos + separator.length());<a name="line.2130"></a>
<FONT color="green">2131</FONT>        }<a name="line.2131"></a>
<FONT color="green">2132</FONT>    <a name="line.2132"></a>
<FONT color="green">2133</FONT>        /**<a name="line.2133"></a>
<FONT color="green">2134</FONT>         * &lt;p&gt;Gets the substring before the last occurrence of a separator.<a name="line.2134"></a>
<FONT color="green">2135</FONT>         * The separator is not returned.&lt;/p&gt;<a name="line.2135"></a>
<FONT color="green">2136</FONT>         *<a name="line.2136"></a>
<FONT color="green">2137</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; string input will return &lt;code&gt;null&lt;/code&gt;.<a name="line.2137"></a>
<FONT color="green">2138</FONT>         * An empty ("") string input will return the empty string.<a name="line.2138"></a>
<FONT color="green">2139</FONT>         * An empty or &lt;code&gt;null&lt;/code&gt; separator will return the input string.&lt;/p&gt;<a name="line.2139"></a>
<FONT color="green">2140</FONT>         *<a name="line.2140"></a>
<FONT color="green">2141</FONT>         * &lt;p&gt;If nothing is found, the string input is returned.&lt;/p&gt;<a name="line.2141"></a>
<FONT color="green">2142</FONT>         *<a name="line.2142"></a>
<FONT color="green">2143</FONT>         * &lt;pre&gt;<a name="line.2143"></a>
<FONT color="green">2144</FONT>         * StringUtils.substringBeforeLast(null, *)      = null<a name="line.2144"></a>
<FONT color="green">2145</FONT>         * StringUtils.substringBeforeLast("", *)        = ""<a name="line.2145"></a>
<FONT color="green">2146</FONT>         * StringUtils.substringBeforeLast("abcba", "b") = "abc"<a name="line.2146"></a>
<FONT color="green">2147</FONT>         * StringUtils.substringBeforeLast("abc", "c")   = "ab"<a name="line.2147"></a>
<FONT color="green">2148</FONT>         * StringUtils.substringBeforeLast("a", "a")     = ""<a name="line.2148"></a>
<FONT color="green">2149</FONT>         * StringUtils.substringBeforeLast("a", "z")     = "a"<a name="line.2149"></a>
<FONT color="green">2150</FONT>         * StringUtils.substringBeforeLast("a", null)    = "a"<a name="line.2150"></a>
<FONT color="green">2151</FONT>         * StringUtils.substringBeforeLast("a", "")      = "a"<a name="line.2151"></a>
<FONT color="green">2152</FONT>         * &lt;/pre&gt;<a name="line.2152"></a>
<FONT color="green">2153</FONT>         *<a name="line.2153"></a>
<FONT color="green">2154</FONT>         * @param str  the String to get a substring from, may be null<a name="line.2154"></a>
<FONT color="green">2155</FONT>         * @param separator  the String to search for, may be null<a name="line.2155"></a>
<FONT color="green">2156</FONT>         * @return the substring before the last occurrence of the separator,<a name="line.2156"></a>
<FONT color="green">2157</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2157"></a>
<FONT color="green">2158</FONT>         * @since 2.0<a name="line.2158"></a>
<FONT color="green">2159</FONT>         */<a name="line.2159"></a>
<FONT color="green">2160</FONT>        public static String substringBeforeLast(String str, String separator) {<a name="line.2160"></a>
<FONT color="green">2161</FONT>            if (isEmpty(str) || isEmpty(separator)) {<a name="line.2161"></a>
<FONT color="green">2162</FONT>                return str;<a name="line.2162"></a>
<FONT color="green">2163</FONT>            }<a name="line.2163"></a>
<FONT color="green">2164</FONT>            int pos = str.lastIndexOf(separator);<a name="line.2164"></a>
<FONT color="green">2165</FONT>            if (pos == INDEX_NOT_FOUND) {<a name="line.2165"></a>
<FONT color="green">2166</FONT>                return str;<a name="line.2166"></a>
<FONT color="green">2167</FONT>            }<a name="line.2167"></a>
<FONT color="green">2168</FONT>            return str.substring(0, pos);<a name="line.2168"></a>
<FONT color="green">2169</FONT>        }<a name="line.2169"></a>
<FONT color="green">2170</FONT>    <a name="line.2170"></a>
<FONT color="green">2171</FONT>        /**<a name="line.2171"></a>
<FONT color="green">2172</FONT>         * &lt;p&gt;Gets the substring after the last occurrence of a separator.<a name="line.2172"></a>
<FONT color="green">2173</FONT>         * The separator is not returned.&lt;/p&gt;<a name="line.2173"></a>
<FONT color="green">2174</FONT>         *<a name="line.2174"></a>
<FONT color="green">2175</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; string input will return &lt;code&gt;null&lt;/code&gt;.<a name="line.2175"></a>
<FONT color="green">2176</FONT>         * An empty ("") string input will return the empty string.<a name="line.2176"></a>
<FONT color="green">2177</FONT>         * An empty or &lt;code&gt;null&lt;/code&gt; separator will return the empty string if<a name="line.2177"></a>
<FONT color="green">2178</FONT>         * the input string is not &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.2178"></a>
<FONT color="green">2179</FONT>         *<a name="line.2179"></a>
<FONT color="green">2180</FONT>         * &lt;p&gt;If nothing is found, the empty string is returned.&lt;/p&gt;<a name="line.2180"></a>
<FONT color="green">2181</FONT>         *<a name="line.2181"></a>
<FONT color="green">2182</FONT>         * &lt;pre&gt;<a name="line.2182"></a>
<FONT color="green">2183</FONT>         * StringUtils.substringAfterLast(null, *)      = null<a name="line.2183"></a>
<FONT color="green">2184</FONT>         * StringUtils.substringAfterLast("", *)        = ""<a name="line.2184"></a>
<FONT color="green">2185</FONT>         * StringUtils.substringAfterLast(*, "")        = ""<a name="line.2185"></a>
<FONT color="green">2186</FONT>         * StringUtils.substringAfterLast(*, null)      = ""<a name="line.2186"></a>
<FONT color="green">2187</FONT>         * StringUtils.substringAfterLast("abc", "a")   = "bc"<a name="line.2187"></a>
<FONT color="green">2188</FONT>         * StringUtils.substringAfterLast("abcba", "b") = "a"<a name="line.2188"></a>
<FONT color="green">2189</FONT>         * StringUtils.substringAfterLast("abc", "c")   = ""<a name="line.2189"></a>
<FONT color="green">2190</FONT>         * StringUtils.substringAfterLast("a", "a")     = ""<a name="line.2190"></a>
<FONT color="green">2191</FONT>         * StringUtils.substringAfterLast("a", "z")     = ""<a name="line.2191"></a>
<FONT color="green">2192</FONT>         * &lt;/pre&gt;<a name="line.2192"></a>
<FONT color="green">2193</FONT>         *<a name="line.2193"></a>
<FONT color="green">2194</FONT>         * @param str  the String to get a substring from, may be null<a name="line.2194"></a>
<FONT color="green">2195</FONT>         * @param separator  the String to search for, may be null<a name="line.2195"></a>
<FONT color="green">2196</FONT>         * @return the substring after the last occurrence of the separator,<a name="line.2196"></a>
<FONT color="green">2197</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2197"></a>
<FONT color="green">2198</FONT>         * @since 2.0<a name="line.2198"></a>
<FONT color="green">2199</FONT>         */<a name="line.2199"></a>
<FONT color="green">2200</FONT>        public static String substringAfterLast(String str, String separator) {<a name="line.2200"></a>
<FONT color="green">2201</FONT>            if (isEmpty(str)) {<a name="line.2201"></a>
<FONT color="green">2202</FONT>                return str;<a name="line.2202"></a>
<FONT color="green">2203</FONT>            }<a name="line.2203"></a>
<FONT color="green">2204</FONT>            if (isEmpty(separator)) {<a name="line.2204"></a>
<FONT color="green">2205</FONT>                return EMPTY;<a name="line.2205"></a>
<FONT color="green">2206</FONT>            }<a name="line.2206"></a>
<FONT color="green">2207</FONT>            int pos = str.lastIndexOf(separator);<a name="line.2207"></a>
<FONT color="green">2208</FONT>            if (pos == INDEX_NOT_FOUND || pos == (str.length() - separator.length())) {<a name="line.2208"></a>
<FONT color="green">2209</FONT>                return EMPTY;<a name="line.2209"></a>
<FONT color="green">2210</FONT>            }<a name="line.2210"></a>
<FONT color="green">2211</FONT>            return str.substring(pos + separator.length());<a name="line.2211"></a>
<FONT color="green">2212</FONT>        }<a name="line.2212"></a>
<FONT color="green">2213</FONT>    <a name="line.2213"></a>
<FONT color="green">2214</FONT>        // Substring between<a name="line.2214"></a>
<FONT color="green">2215</FONT>        //-----------------------------------------------------------------------<a name="line.2215"></a>
<FONT color="green">2216</FONT>        /**<a name="line.2216"></a>
<FONT color="green">2217</FONT>         * &lt;p&gt;Gets the String that is nested in between two instances of the<a name="line.2217"></a>
<FONT color="green">2218</FONT>         * same String.&lt;/p&gt;<a name="line.2218"></a>
<FONT color="green">2219</FONT>         *<a name="line.2219"></a>
<FONT color="green">2220</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2220"></a>
<FONT color="green">2221</FONT>         * A &lt;code&gt;null&lt;/code&gt; tag returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.2221"></a>
<FONT color="green">2222</FONT>         *<a name="line.2222"></a>
<FONT color="green">2223</FONT>         * &lt;pre&gt;<a name="line.2223"></a>
<FONT color="green">2224</FONT>         * StringUtils.substringBetween(null, *)            = null<a name="line.2224"></a>
<FONT color="green">2225</FONT>         * StringUtils.substringBetween("", "")             = ""<a name="line.2225"></a>
<FONT color="green">2226</FONT>         * StringUtils.substringBetween("", "tag")          = null<a name="line.2226"></a>
<FONT color="green">2227</FONT>         * StringUtils.substringBetween("tagabctag", null)  = null<a name="line.2227"></a>
<FONT color="green">2228</FONT>         * StringUtils.substringBetween("tagabctag", "")    = ""<a name="line.2228"></a>
<FONT color="green">2229</FONT>         * StringUtils.substringBetween("tagabctag", "tag") = "abc"<a name="line.2229"></a>
<FONT color="green">2230</FONT>         * &lt;/pre&gt;<a name="line.2230"></a>
<FONT color="green">2231</FONT>         *<a name="line.2231"></a>
<FONT color="green">2232</FONT>         * @param str  the String containing the substring, may be null<a name="line.2232"></a>
<FONT color="green">2233</FONT>         * @param tag  the String before and after the substring, may be null<a name="line.2233"></a>
<FONT color="green">2234</FONT>         * @return the substring, &lt;code&gt;null&lt;/code&gt; if no match<a name="line.2234"></a>
<FONT color="green">2235</FONT>         * @since 2.0<a name="line.2235"></a>
<FONT color="green">2236</FONT>         */<a name="line.2236"></a>
<FONT color="green">2237</FONT>        public static String substringBetween(String str, String tag) {<a name="line.2237"></a>
<FONT color="green">2238</FONT>            return substringBetween(str, tag, tag);<a name="line.2238"></a>
<FONT color="green">2239</FONT>        }<a name="line.2239"></a>
<FONT color="green">2240</FONT>    <a name="line.2240"></a>
<FONT color="green">2241</FONT>        /**<a name="line.2241"></a>
<FONT color="green">2242</FONT>         * &lt;p&gt;Gets the String that is nested in between two Strings.<a name="line.2242"></a>
<FONT color="green">2243</FONT>         * Only the first match is returned.&lt;/p&gt;<a name="line.2243"></a>
<FONT color="green">2244</FONT>         *<a name="line.2244"></a>
<FONT color="green">2245</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2245"></a>
<FONT color="green">2246</FONT>         * A &lt;code&gt;null&lt;/code&gt; open/close returns &lt;code&gt;null&lt;/code&gt; (no match).<a name="line.2246"></a>
<FONT color="green">2247</FONT>         * An empty ("") open and close returns an empty string.&lt;/p&gt;<a name="line.2247"></a>
<FONT color="green">2248</FONT>         *<a name="line.2248"></a>
<FONT color="green">2249</FONT>         * &lt;pre&gt;<a name="line.2249"></a>
<FONT color="green">2250</FONT>         * StringUtils.substringBetween("wx[b]yz", "[", "]") = "b"<a name="line.2250"></a>
<FONT color="green">2251</FONT>         * StringUtils.substringBetween(null, *, *)          = null<a name="line.2251"></a>
<FONT color="green">2252</FONT>         * StringUtils.substringBetween(*, null, *)          = null<a name="line.2252"></a>
<FONT color="green">2253</FONT>         * StringUtils.substringBetween(*, *, null)          = null<a name="line.2253"></a>
<FONT color="green">2254</FONT>         * StringUtils.substringBetween("", "", "")          = ""<a name="line.2254"></a>
<FONT color="green">2255</FONT>         * StringUtils.substringBetween("", "", "]")         = null<a name="line.2255"></a>
<FONT color="green">2256</FONT>         * StringUtils.substringBetween("", "[", "]")        = null<a name="line.2256"></a>
<FONT color="green">2257</FONT>         * StringUtils.substringBetween("yabcz", "", "")     = ""<a name="line.2257"></a>
<FONT color="green">2258</FONT>         * StringUtils.substringBetween("yabcz", "y", "z")   = "abc"<a name="line.2258"></a>
<FONT color="green">2259</FONT>         * StringUtils.substringBetween("yabczyabcz", "y", "z")   = "abc"<a name="line.2259"></a>
<FONT color="green">2260</FONT>         * &lt;/pre&gt;<a name="line.2260"></a>
<FONT color="green">2261</FONT>         *<a name="line.2261"></a>
<FONT color="green">2262</FONT>         * @param str  the String containing the substring, may be null<a name="line.2262"></a>
<FONT color="green">2263</FONT>         * @param open  the String before the substring, may be null<a name="line.2263"></a>
<FONT color="green">2264</FONT>         * @param close  the String after the substring, may be null<a name="line.2264"></a>
<FONT color="green">2265</FONT>         * @return the substring, &lt;code&gt;null&lt;/code&gt; if no match<a name="line.2265"></a>
<FONT color="green">2266</FONT>         * @since 2.0<a name="line.2266"></a>
<FONT color="green">2267</FONT>         */<a name="line.2267"></a>
<FONT color="green">2268</FONT>        public static String substringBetween(String str, String open, String close) {<a name="line.2268"></a>
<FONT color="green">2269</FONT>            if (str == null || open == null || close == null) {<a name="line.2269"></a>
<FONT color="green">2270</FONT>                return null;<a name="line.2270"></a>
<FONT color="green">2271</FONT>            }<a name="line.2271"></a>
<FONT color="green">2272</FONT>            int start = str.indexOf(open);<a name="line.2272"></a>
<FONT color="green">2273</FONT>            if (start != INDEX_NOT_FOUND) {<a name="line.2273"></a>
<FONT color="green">2274</FONT>                int end = str.indexOf(close, start + open.length());<a name="line.2274"></a>
<FONT color="green">2275</FONT>                if (end != INDEX_NOT_FOUND) {<a name="line.2275"></a>
<FONT color="green">2276</FONT>                    return str.substring(start + open.length(), end);<a name="line.2276"></a>
<FONT color="green">2277</FONT>                }<a name="line.2277"></a>
<FONT color="green">2278</FONT>            }<a name="line.2278"></a>
<FONT color="green">2279</FONT>            return null;<a name="line.2279"></a>
<FONT color="green">2280</FONT>        }<a name="line.2280"></a>
<FONT color="green">2281</FONT>    <a name="line.2281"></a>
<FONT color="green">2282</FONT>        /**<a name="line.2282"></a>
<FONT color="green">2283</FONT>         * &lt;p&gt;Searches a String for substrings delimited by a start and end tag,<a name="line.2283"></a>
<FONT color="green">2284</FONT>         * returning all matching substrings in an array.&lt;/p&gt;<a name="line.2284"></a>
<FONT color="green">2285</FONT>         *<a name="line.2285"></a>
<FONT color="green">2286</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2286"></a>
<FONT color="green">2287</FONT>         * A &lt;code&gt;null&lt;/code&gt; open/close returns &lt;code&gt;null&lt;/code&gt; (no match).<a name="line.2287"></a>
<FONT color="green">2288</FONT>         * An empty ("") open/close returns &lt;code&gt;null&lt;/code&gt; (no match).&lt;/p&gt;<a name="line.2288"></a>
<FONT color="green">2289</FONT>         *<a name="line.2289"></a>
<FONT color="green">2290</FONT>         * &lt;pre&gt;<a name="line.2290"></a>
<FONT color="green">2291</FONT>         * StringUtils.substringsBetween("[a][b][c]", "[", "]") = ["a","b","c"]<a name="line.2291"></a>
<FONT color="green">2292</FONT>         * StringUtils.substringsBetween(null, *, *)            = null<a name="line.2292"></a>
<FONT color="green">2293</FONT>         * StringUtils.substringsBetween(*, null, *)            = null<a name="line.2293"></a>
<FONT color="green">2294</FONT>         * StringUtils.substringsBetween(*, *, null)            = null<a name="line.2294"></a>
<FONT color="green">2295</FONT>         * StringUtils.substringsBetween("", "[", "]")          = []<a name="line.2295"></a>
<FONT color="green">2296</FONT>         * &lt;/pre&gt;<a name="line.2296"></a>
<FONT color="green">2297</FONT>         *<a name="line.2297"></a>
<FONT color="green">2298</FONT>         * @param str  the String containing the substrings, null returns null, empty returns empty<a name="line.2298"></a>
<FONT color="green">2299</FONT>         * @param open  the String identifying the start of the substring, empty returns null<a name="line.2299"></a>
<FONT color="green">2300</FONT>         * @param close  the String identifying the end of the substring, empty returns null<a name="line.2300"></a>
<FONT color="green">2301</FONT>         * @return a String Array of substrings, or &lt;code&gt;null&lt;/code&gt; if no match<a name="line.2301"></a>
<FONT color="green">2302</FONT>         * @since 2.3<a name="line.2302"></a>
<FONT color="green">2303</FONT>         */<a name="line.2303"></a>
<FONT color="green">2304</FONT>        public static String[] substringsBetween(String str, String open, String close) {<a name="line.2304"></a>
<FONT color="green">2305</FONT>            if (str == null || isEmpty(open) || isEmpty(close)) {<a name="line.2305"></a>
<FONT color="green">2306</FONT>                return null;<a name="line.2306"></a>
<FONT color="green">2307</FONT>            }<a name="line.2307"></a>
<FONT color="green">2308</FONT>            int strLen = str.length();<a name="line.2308"></a>
<FONT color="green">2309</FONT>            if (strLen == 0) {<a name="line.2309"></a>
<FONT color="green">2310</FONT>                return ArrayUtils.EMPTY_STRING_ARRAY;<a name="line.2310"></a>
<FONT color="green">2311</FONT>            }<a name="line.2311"></a>
<FONT color="green">2312</FONT>            int closeLen = close.length();<a name="line.2312"></a>
<FONT color="green">2313</FONT>            int openLen = open.length();<a name="line.2313"></a>
<FONT color="green">2314</FONT>            List list = new ArrayList();<a name="line.2314"></a>
<FONT color="green">2315</FONT>            int pos = 0;<a name="line.2315"></a>
<FONT color="green">2316</FONT>            while (pos &lt; (strLen - closeLen)) {<a name="line.2316"></a>
<FONT color="green">2317</FONT>                int start = str.indexOf(open, pos);<a name="line.2317"></a>
<FONT color="green">2318</FONT>                if (start &lt; 0) {<a name="line.2318"></a>
<FONT color="green">2319</FONT>                    break;<a name="line.2319"></a>
<FONT color="green">2320</FONT>                }<a name="line.2320"></a>
<FONT color="green">2321</FONT>                start += openLen;<a name="line.2321"></a>
<FONT color="green">2322</FONT>                int end = str.indexOf(close, start);<a name="line.2322"></a>
<FONT color="green">2323</FONT>                if (end &lt; 0) {<a name="line.2323"></a>
<FONT color="green">2324</FONT>                    break;<a name="line.2324"></a>
<FONT color="green">2325</FONT>                }<a name="line.2325"></a>
<FONT color="green">2326</FONT>                list.add(str.substring(start, end));<a name="line.2326"></a>
<FONT color="green">2327</FONT>                pos = end + closeLen;<a name="line.2327"></a>
<FONT color="green">2328</FONT>            }<a name="line.2328"></a>
<FONT color="green">2329</FONT>            if (list.isEmpty()) {<a name="line.2329"></a>
<FONT color="green">2330</FONT>                return null;<a name="line.2330"></a>
<FONT color="green">2331</FONT>            } <a name="line.2331"></a>
<FONT color="green">2332</FONT>            return (String[]) list.toArray(new String [list.size()]);<a name="line.2332"></a>
<FONT color="green">2333</FONT>        }<a name="line.2333"></a>
<FONT color="green">2334</FONT>    <a name="line.2334"></a>
<FONT color="green">2335</FONT>        // Nested extraction<a name="line.2335"></a>
<FONT color="green">2336</FONT>        //-----------------------------------------------------------------------<a name="line.2336"></a>
<FONT color="green">2337</FONT>        /**<a name="line.2337"></a>
<FONT color="green">2338</FONT>         * &lt;p&gt;Gets the String that is nested in between two instances of the<a name="line.2338"></a>
<FONT color="green">2339</FONT>         * same String.&lt;/p&gt;<a name="line.2339"></a>
<FONT color="green">2340</FONT>         *<a name="line.2340"></a>
<FONT color="green">2341</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2341"></a>
<FONT color="green">2342</FONT>         * A &lt;code&gt;null&lt;/code&gt; tag returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.2342"></a>
<FONT color="green">2343</FONT>         *<a name="line.2343"></a>
<FONT color="green">2344</FONT>         * &lt;pre&gt;<a name="line.2344"></a>
<FONT color="green">2345</FONT>         * StringUtils.getNestedString(null, *)            = null<a name="line.2345"></a>
<FONT color="green">2346</FONT>         * StringUtils.getNestedString("", "")             = ""<a name="line.2346"></a>
<FONT color="green">2347</FONT>         * StringUtils.getNestedString("", "tag")          = null<a name="line.2347"></a>
<FONT color="green">2348</FONT>         * StringUtils.getNestedString("tagabctag", null)  = null<a name="line.2348"></a>
<FONT color="green">2349</FONT>         * StringUtils.getNestedString("tagabctag", "")    = ""<a name="line.2349"></a>
<FONT color="green">2350</FONT>         * StringUtils.getNestedString("tagabctag", "tag") = "abc"<a name="line.2350"></a>
<FONT color="green">2351</FONT>         * &lt;/pre&gt;<a name="line.2351"></a>
<FONT color="green">2352</FONT>         *<a name="line.2352"></a>
<FONT color="green">2353</FONT>         * @param str  the String containing nested-string, may be null<a name="line.2353"></a>
<FONT color="green">2354</FONT>         * @param tag  the String before and after nested-string, may be null<a name="line.2354"></a>
<FONT color="green">2355</FONT>         * @return the nested String, &lt;code&gt;null&lt;/code&gt; if no match<a name="line.2355"></a>
<FONT color="green">2356</FONT>         * @deprecated Use the better named {@link #substringBetween(String, String)}.<a name="line.2356"></a>
<FONT color="green">2357</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.2357"></a>
<FONT color="green">2358</FONT>         */<a name="line.2358"></a>
<FONT color="green">2359</FONT>        public static String getNestedString(String str, String tag) {<a name="line.2359"></a>
<FONT color="green">2360</FONT>            return substringBetween(str, tag, tag);<a name="line.2360"></a>
<FONT color="green">2361</FONT>        }<a name="line.2361"></a>
<FONT color="green">2362</FONT>    <a name="line.2362"></a>
<FONT color="green">2363</FONT>        /**<a name="line.2363"></a>
<FONT color="green">2364</FONT>         * &lt;p&gt;Gets the String that is nested in between two Strings.<a name="line.2364"></a>
<FONT color="green">2365</FONT>         * Only the first match is returned.&lt;/p&gt;<a name="line.2365"></a>
<FONT color="green">2366</FONT>         *<a name="line.2366"></a>
<FONT color="green">2367</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2367"></a>
<FONT color="green">2368</FONT>         * A &lt;code&gt;null&lt;/code&gt; open/close returns &lt;code&gt;null&lt;/code&gt; (no match).<a name="line.2368"></a>
<FONT color="green">2369</FONT>         * An empty ("") open/close returns an empty string.&lt;/p&gt;<a name="line.2369"></a>
<FONT color="green">2370</FONT>         *<a name="line.2370"></a>
<FONT color="green">2371</FONT>         * &lt;pre&gt;<a name="line.2371"></a>
<FONT color="green">2372</FONT>         * StringUtils.getNestedString(null, *, *)          = null<a name="line.2372"></a>
<FONT color="green">2373</FONT>         * StringUtils.getNestedString("", "", "")          = ""<a name="line.2373"></a>
<FONT color="green">2374</FONT>         * StringUtils.getNestedString("", "", "tag")       = null<a name="line.2374"></a>
<FONT color="green">2375</FONT>         * StringUtils.getNestedString("", "tag", "tag")    = null<a name="line.2375"></a>
<FONT color="green">2376</FONT>         * StringUtils.getNestedString("yabcz", null, null) = null<a name="line.2376"></a>
<FONT color="green">2377</FONT>         * StringUtils.getNestedString("yabcz", "", "")     = ""<a name="line.2377"></a>
<FONT color="green">2378</FONT>         * StringUtils.getNestedString("yabcz", "y", "z")   = "abc"<a name="line.2378"></a>
<FONT color="green">2379</FONT>         * StringUtils.getNestedString("yabczyabcz", "y", "z")   = "abc"<a name="line.2379"></a>
<FONT color="green">2380</FONT>         * &lt;/pre&gt;<a name="line.2380"></a>
<FONT color="green">2381</FONT>         *<a name="line.2381"></a>
<FONT color="green">2382</FONT>         * @param str  the String containing nested-string, may be null<a name="line.2382"></a>
<FONT color="green">2383</FONT>         * @param open  the String before nested-string, may be null<a name="line.2383"></a>
<FONT color="green">2384</FONT>         * @param close  the String after nested-string, may be null<a name="line.2384"></a>
<FONT color="green">2385</FONT>         * @return the nested String, &lt;code&gt;null&lt;/code&gt; if no match<a name="line.2385"></a>
<FONT color="green">2386</FONT>         * @deprecated Use the better named {@link #substringBetween(String, String, String)}.<a name="line.2386"></a>
<FONT color="green">2387</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.2387"></a>
<FONT color="green">2388</FONT>         */<a name="line.2388"></a>
<FONT color="green">2389</FONT>        public static String getNestedString(String str, String open, String close) {<a name="line.2389"></a>
<FONT color="green">2390</FONT>            return substringBetween(str, open, close);<a name="line.2390"></a>
<FONT color="green">2391</FONT>        }<a name="line.2391"></a>
<FONT color="green">2392</FONT>    <a name="line.2392"></a>
<FONT color="green">2393</FONT>        // Splitting<a name="line.2393"></a>
<FONT color="green">2394</FONT>        //-----------------------------------------------------------------------<a name="line.2394"></a>
<FONT color="green">2395</FONT>        /**<a name="line.2395"></a>
<FONT color="green">2396</FONT>         * &lt;p&gt;Splits the provided text into an array, using whitespace as the<a name="line.2396"></a>
<FONT color="green">2397</FONT>         * separator.<a name="line.2397"></a>
<FONT color="green">2398</FONT>         * Whitespace is defined by {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.2398"></a>
<FONT color="green">2399</FONT>         *<a name="line.2399"></a>
<FONT color="green">2400</FONT>         * &lt;p&gt;The separator is not included in the returned String array.<a name="line.2400"></a>
<FONT color="green">2401</FONT>         * Adjacent separators are treated as one separator.<a name="line.2401"></a>
<FONT color="green">2402</FONT>         * For more control over the split use the StrTokenizer class.&lt;/p&gt;<a name="line.2402"></a>
<FONT color="green">2403</FONT>         *<a name="line.2403"></a>
<FONT color="green">2404</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.2404"></a>
<FONT color="green">2405</FONT>         *<a name="line.2405"></a>
<FONT color="green">2406</FONT>         * &lt;pre&gt;<a name="line.2406"></a>
<FONT color="green">2407</FONT>         * StringUtils.split(null)       = null<a name="line.2407"></a>
<FONT color="green">2408</FONT>         * StringUtils.split("")         = []<a name="line.2408"></a>
<FONT color="green">2409</FONT>         * StringUtils.split("abc def")  = ["abc", "def"]<a name="line.2409"></a>
<FONT color="green">2410</FONT>         * StringUtils.split("abc  def") = ["abc", "def"]<a name="line.2410"></a>
<FONT color="green">2411</FONT>         * StringUtils.split(" abc ")    = ["abc"]<a name="line.2411"></a>
<FONT color="green">2412</FONT>         * &lt;/pre&gt;<a name="line.2412"></a>
<FONT color="green">2413</FONT>         *<a name="line.2413"></a>
<FONT color="green">2414</FONT>         * @param str  the String to parse, may be null<a name="line.2414"></a>
<FONT color="green">2415</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2415"></a>
<FONT color="green">2416</FONT>         */<a name="line.2416"></a>
<FONT color="green">2417</FONT>        public static String[] split(String str) {<a name="line.2417"></a>
<FONT color="green">2418</FONT>            return split(str, null, -1);<a name="line.2418"></a>
<FONT color="green">2419</FONT>        }<a name="line.2419"></a>
<FONT color="green">2420</FONT>    <a name="line.2420"></a>
<FONT color="green">2421</FONT>        /**<a name="line.2421"></a>
<FONT color="green">2422</FONT>         * &lt;p&gt;Splits the provided text into an array, separator specified.<a name="line.2422"></a>
<FONT color="green">2423</FONT>         * This is an alternative to using StringTokenizer.&lt;/p&gt;<a name="line.2423"></a>
<FONT color="green">2424</FONT>         *<a name="line.2424"></a>
<FONT color="green">2425</FONT>         * &lt;p&gt;The separator is not included in the returned String array.<a name="line.2425"></a>
<FONT color="green">2426</FONT>         * Adjacent separators are treated as one separator.<a name="line.2426"></a>
<FONT color="green">2427</FONT>         * For more control over the split use the StrTokenizer class.&lt;/p&gt;<a name="line.2427"></a>
<FONT color="green">2428</FONT>         *<a name="line.2428"></a>
<FONT color="green">2429</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.2429"></a>
<FONT color="green">2430</FONT>         *<a name="line.2430"></a>
<FONT color="green">2431</FONT>         * &lt;pre&gt;<a name="line.2431"></a>
<FONT color="green">2432</FONT>         * StringUtils.split(null, *)         = null<a name="line.2432"></a>
<FONT color="green">2433</FONT>         * StringUtils.split("", *)           = []<a name="line.2433"></a>
<FONT color="green">2434</FONT>         * StringUtils.split("a.b.c", '.')    = ["a", "b", "c"]<a name="line.2434"></a>
<FONT color="green">2435</FONT>         * StringUtils.split("a..b.c", '.')   = ["a", "b", "c"]<a name="line.2435"></a>
<FONT color="green">2436</FONT>         * StringUtils.split("a:b:c", '.')    = ["a:b:c"]<a name="line.2436"></a>
<FONT color="green">2437</FONT>         * StringUtils.split("a b c", ' ')    = ["a", "b", "c"]<a name="line.2437"></a>
<FONT color="green">2438</FONT>         * &lt;/pre&gt;<a name="line.2438"></a>
<FONT color="green">2439</FONT>         *<a name="line.2439"></a>
<FONT color="green">2440</FONT>         * @param str  the String to parse, may be null<a name="line.2440"></a>
<FONT color="green">2441</FONT>         * @param separatorChar  the character used as the delimiter<a name="line.2441"></a>
<FONT color="green">2442</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2442"></a>
<FONT color="green">2443</FONT>         * @since 2.0<a name="line.2443"></a>
<FONT color="green">2444</FONT>         */<a name="line.2444"></a>
<FONT color="green">2445</FONT>        public static String[] split(String str, char separatorChar) {<a name="line.2445"></a>
<FONT color="green">2446</FONT>            return splitWorker(str, separatorChar, false);<a name="line.2446"></a>
<FONT color="green">2447</FONT>        }<a name="line.2447"></a>
<FONT color="green">2448</FONT>    <a name="line.2448"></a>
<FONT color="green">2449</FONT>        /**<a name="line.2449"></a>
<FONT color="green">2450</FONT>         * &lt;p&gt;Splits the provided text into an array, separators specified.<a name="line.2450"></a>
<FONT color="green">2451</FONT>         * This is an alternative to using StringTokenizer.&lt;/p&gt;<a name="line.2451"></a>
<FONT color="green">2452</FONT>         *<a name="line.2452"></a>
<FONT color="green">2453</FONT>         * &lt;p&gt;The separator is not included in the returned String array.<a name="line.2453"></a>
<FONT color="green">2454</FONT>         * Adjacent separators are treated as one separator.<a name="line.2454"></a>
<FONT color="green">2455</FONT>         * For more control over the split use the StrTokenizer class.&lt;/p&gt;<a name="line.2455"></a>
<FONT color="green">2456</FONT>         *<a name="line.2456"></a>
<FONT color="green">2457</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2457"></a>
<FONT color="green">2458</FONT>         * A &lt;code&gt;null&lt;/code&gt; separatorChars splits on whitespace.&lt;/p&gt;<a name="line.2458"></a>
<FONT color="green">2459</FONT>         *<a name="line.2459"></a>
<FONT color="green">2460</FONT>         * &lt;pre&gt;<a name="line.2460"></a>
<FONT color="green">2461</FONT>         * StringUtils.split(null, *)         = null<a name="line.2461"></a>
<FONT color="green">2462</FONT>         * StringUtils.split("", *)           = []<a name="line.2462"></a>
<FONT color="green">2463</FONT>         * StringUtils.split("abc def", null) = ["abc", "def"]<a name="line.2463"></a>
<FONT color="green">2464</FONT>         * StringUtils.split("abc def", " ")  = ["abc", "def"]<a name="line.2464"></a>
<FONT color="green">2465</FONT>         * StringUtils.split("abc  def", " ") = ["abc", "def"]<a name="line.2465"></a>
<FONT color="green">2466</FONT>         * StringUtils.split("ab:cd:ef", ":") = ["ab", "cd", "ef"]<a name="line.2466"></a>
<FONT color="green">2467</FONT>         * &lt;/pre&gt;<a name="line.2467"></a>
<FONT color="green">2468</FONT>         *<a name="line.2468"></a>
<FONT color="green">2469</FONT>         * @param str  the String to parse, may be null<a name="line.2469"></a>
<FONT color="green">2470</FONT>         * @param separatorChars  the characters used as the delimiters,<a name="line.2470"></a>
<FONT color="green">2471</FONT>         *  &lt;code&gt;null&lt;/code&gt; splits on whitespace<a name="line.2471"></a>
<FONT color="green">2472</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2472"></a>
<FONT color="green">2473</FONT>         */<a name="line.2473"></a>
<FONT color="green">2474</FONT>        public static String[] split(String str, String separatorChars) {<a name="line.2474"></a>
<FONT color="green">2475</FONT>            return splitWorker(str, separatorChars, -1, false);<a name="line.2475"></a>
<FONT color="green">2476</FONT>        }<a name="line.2476"></a>
<FONT color="green">2477</FONT>    <a name="line.2477"></a>
<FONT color="green">2478</FONT>        /**<a name="line.2478"></a>
<FONT color="green">2479</FONT>         * &lt;p&gt;Splits the provided text into an array with a maximum length,<a name="line.2479"></a>
<FONT color="green">2480</FONT>         * separators specified.&lt;/p&gt;<a name="line.2480"></a>
<FONT color="green">2481</FONT>         *<a name="line.2481"></a>
<FONT color="green">2482</FONT>         * &lt;p&gt;The separator is not included in the returned String array.<a name="line.2482"></a>
<FONT color="green">2483</FONT>         * Adjacent separators are treated as one separator.&lt;/p&gt;<a name="line.2483"></a>
<FONT color="green">2484</FONT>         *<a name="line.2484"></a>
<FONT color="green">2485</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2485"></a>
<FONT color="green">2486</FONT>         * A &lt;code&gt;null&lt;/code&gt; separatorChars splits on whitespace.&lt;/p&gt;<a name="line.2486"></a>
<FONT color="green">2487</FONT>         *<a name="line.2487"></a>
<FONT color="green">2488</FONT>         * &lt;p&gt;If more than &lt;code&gt;max&lt;/code&gt; delimited substrings are found, the last<a name="line.2488"></a>
<FONT color="green">2489</FONT>         * returned string includes all characters after the first &lt;code&gt;max - 1&lt;/code&gt;<a name="line.2489"></a>
<FONT color="green">2490</FONT>         * returned strings (including separator characters).&lt;/p&gt;<a name="line.2490"></a>
<FONT color="green">2491</FONT>         *<a name="line.2491"></a>
<FONT color="green">2492</FONT>         * &lt;pre&gt;<a name="line.2492"></a>
<FONT color="green">2493</FONT>         * StringUtils.split(null, *, *)            = null<a name="line.2493"></a>
<FONT color="green">2494</FONT>         * StringUtils.split("", *, *)              = []<a name="line.2494"></a>
<FONT color="green">2495</FONT>         * StringUtils.split("ab de fg", null, 0)   = ["ab", "cd", "ef"]<a name="line.2495"></a>
<FONT color="green">2496</FONT>         * StringUtils.split("ab   de fg", null, 0) = ["ab", "cd", "ef"]<a name="line.2496"></a>
<FONT color="green">2497</FONT>         * StringUtils.split("ab:cd:ef", ":", 0)    = ["ab", "cd", "ef"]<a name="line.2497"></a>
<FONT color="green">2498</FONT>         * StringUtils.split("ab:cd:ef", ":", 2)    = ["ab", "cd:ef"]<a name="line.2498"></a>
<FONT color="green">2499</FONT>         * &lt;/pre&gt;<a name="line.2499"></a>
<FONT color="green">2500</FONT>         *<a name="line.2500"></a>
<FONT color="green">2501</FONT>         * @param str  the String to parse, may be null<a name="line.2501"></a>
<FONT color="green">2502</FONT>         * @param separatorChars  the characters used as the delimiters,<a name="line.2502"></a>
<FONT color="green">2503</FONT>         *  &lt;code&gt;null&lt;/code&gt; splits on whitespace<a name="line.2503"></a>
<FONT color="green">2504</FONT>         * @param max  the maximum number of elements to include in the<a name="line.2504"></a>
<FONT color="green">2505</FONT>         *  array. A zero or negative value implies no limit<a name="line.2505"></a>
<FONT color="green">2506</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2506"></a>
<FONT color="green">2507</FONT>         */<a name="line.2507"></a>
<FONT color="green">2508</FONT>        public static String[] split(String str, String separatorChars, int max) {<a name="line.2508"></a>
<FONT color="green">2509</FONT>            return splitWorker(str, separatorChars, max, false);<a name="line.2509"></a>
<FONT color="green">2510</FONT>        }<a name="line.2510"></a>
<FONT color="green">2511</FONT>    <a name="line.2511"></a>
<FONT color="green">2512</FONT>        /**<a name="line.2512"></a>
<FONT color="green">2513</FONT>         * &lt;p&gt;Splits the provided text into an array, separator string specified.&lt;/p&gt;<a name="line.2513"></a>
<FONT color="green">2514</FONT>         *<a name="line.2514"></a>
<FONT color="green">2515</FONT>         * &lt;p&gt;The separator(s) will not be included in the returned String array.<a name="line.2515"></a>
<FONT color="green">2516</FONT>         * Adjacent separators are treated as one separator.&lt;/p&gt;<a name="line.2516"></a>
<FONT color="green">2517</FONT>         *<a name="line.2517"></a>
<FONT color="green">2518</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2518"></a>
<FONT color="green">2519</FONT>         * A &lt;code&gt;null&lt;/code&gt; separator splits on whitespace.&lt;/p&gt;<a name="line.2519"></a>
<FONT color="green">2520</FONT>         *<a name="line.2520"></a>
<FONT color="green">2521</FONT>         * &lt;pre&gt;<a name="line.2521"></a>
<FONT color="green">2522</FONT>         * StringUtils.splitByWholeSeparator(null, *)               = null<a name="line.2522"></a>
<FONT color="green">2523</FONT>         * StringUtils.splitByWholeSeparator("", *)                 = []<a name="line.2523"></a>
<FONT color="green">2524</FONT>         * StringUtils.splitByWholeSeparator("ab de fg", null)      = ["ab", "de", "fg"]<a name="line.2524"></a>
<FONT color="green">2525</FONT>         * StringUtils.splitByWholeSeparator("ab   de fg", null)    = ["ab", "de", "fg"]<a name="line.2525"></a>
<FONT color="green">2526</FONT>         * StringUtils.splitByWholeSeparator("ab:cd:ef", ":")       = ["ab", "cd", "ef"]<a name="line.2526"></a>
<FONT color="green">2527</FONT>         * StringUtils.splitByWholeSeparator("ab-!-cd-!-ef", "-!-") = ["ab", "cd", "ef"]<a name="line.2527"></a>
<FONT color="green">2528</FONT>         * &lt;/pre&gt;<a name="line.2528"></a>
<FONT color="green">2529</FONT>         *<a name="line.2529"></a>
<FONT color="green">2530</FONT>         * @param str  the String to parse, may be null<a name="line.2530"></a>
<FONT color="green">2531</FONT>         * @param separator  String containing the String to be used as a delimiter,<a name="line.2531"></a>
<FONT color="green">2532</FONT>         *  &lt;code&gt;null&lt;/code&gt; splits on whitespace<a name="line.2532"></a>
<FONT color="green">2533</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String was input<a name="line.2533"></a>
<FONT color="green">2534</FONT>         */<a name="line.2534"></a>
<FONT color="green">2535</FONT>        public static String[] splitByWholeSeparator(String str, String separator) {<a name="line.2535"></a>
<FONT color="green">2536</FONT>            return splitByWholeSeparatorWorker( str, separator, -1, false ) ;<a name="line.2536"></a>
<FONT color="green">2537</FONT>        }<a name="line.2537"></a>
<FONT color="green">2538</FONT>    <a name="line.2538"></a>
<FONT color="green">2539</FONT>        /**<a name="line.2539"></a>
<FONT color="green">2540</FONT>         * &lt;p&gt;Splits the provided text into an array, separator string specified.<a name="line.2540"></a>
<FONT color="green">2541</FONT>         * Returns a maximum of &lt;code&gt;max&lt;/code&gt; substrings.&lt;/p&gt;<a name="line.2541"></a>
<FONT color="green">2542</FONT>         *<a name="line.2542"></a>
<FONT color="green">2543</FONT>         * &lt;p&gt;The separator(s) will not be included in the returned String array.<a name="line.2543"></a>
<FONT color="green">2544</FONT>         * Adjacent separators are treated as one separator.&lt;/p&gt;<a name="line.2544"></a>
<FONT color="green">2545</FONT>         *<a name="line.2545"></a>
<FONT color="green">2546</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2546"></a>
<FONT color="green">2547</FONT>         * A &lt;code&gt;null&lt;/code&gt; separator splits on whitespace.&lt;/p&gt;<a name="line.2547"></a>
<FONT color="green">2548</FONT>         *<a name="line.2548"></a>
<FONT color="green">2549</FONT>         * &lt;pre&gt;<a name="line.2549"></a>
<FONT color="green">2550</FONT>         * StringUtils.splitByWholeSeparator(null, *, *)               = null<a name="line.2550"></a>
<FONT color="green">2551</FONT>         * StringUtils.splitByWholeSeparator("", *, *)                 = []<a name="line.2551"></a>
<FONT color="green">2552</FONT>         * StringUtils.splitByWholeSeparator("ab de fg", null, 0)      = ["ab", "de", "fg"]<a name="line.2552"></a>
<FONT color="green">2553</FONT>         * StringUtils.splitByWholeSeparator("ab   de fg", null, 0)    = ["ab", "de", "fg"]<a name="line.2553"></a>
<FONT color="green">2554</FONT>         * StringUtils.splitByWholeSeparator("ab:cd:ef", ":", 2)       = ["ab", "cd:ef"]<a name="line.2554"></a>
<FONT color="green">2555</FONT>         * StringUtils.splitByWholeSeparator("ab-!-cd-!-ef", "-!-", 5) = ["ab", "cd", "ef"]<a name="line.2555"></a>
<FONT color="green">2556</FONT>         * StringUtils.splitByWholeSeparator("ab-!-cd-!-ef", "-!-", 2) = ["ab", "cd-!-ef"]<a name="line.2556"></a>
<FONT color="green">2557</FONT>         * &lt;/pre&gt;<a name="line.2557"></a>
<FONT color="green">2558</FONT>         *<a name="line.2558"></a>
<FONT color="green">2559</FONT>         * @param str  the String to parse, may be null<a name="line.2559"></a>
<FONT color="green">2560</FONT>         * @param separator  String containing the String to be used as a delimiter,<a name="line.2560"></a>
<FONT color="green">2561</FONT>         *  &lt;code&gt;null&lt;/code&gt; splits on whitespace<a name="line.2561"></a>
<FONT color="green">2562</FONT>         * @param max  the maximum number of elements to include in the returned<a name="line.2562"></a>
<FONT color="green">2563</FONT>         *  array. A zero or negative value implies no limit.<a name="line.2563"></a>
<FONT color="green">2564</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String was input<a name="line.2564"></a>
<FONT color="green">2565</FONT>         */<a name="line.2565"></a>
<FONT color="green">2566</FONT>        public static String[] splitByWholeSeparator( String str, String separator, int max ) {<a name="line.2566"></a>
<FONT color="green">2567</FONT>            return splitByWholeSeparatorWorker(str, separator, max, false);<a name="line.2567"></a>
<FONT color="green">2568</FONT>        }<a name="line.2568"></a>
<FONT color="green">2569</FONT>    <a name="line.2569"></a>
<FONT color="green">2570</FONT>        /**<a name="line.2570"></a>
<FONT color="green">2571</FONT>         * &lt;p&gt;Splits the provided text into an array, separator string specified. &lt;/p&gt;<a name="line.2571"></a>
<FONT color="green">2572</FONT>         *<a name="line.2572"></a>
<FONT color="green">2573</FONT>         * &lt;p&gt;The separator is not included in the returned String array.<a name="line.2573"></a>
<FONT color="green">2574</FONT>         * Adjacent separators are treated as separators for empty tokens.<a name="line.2574"></a>
<FONT color="green">2575</FONT>         * For more control over the split use the StrTokenizer class.&lt;/p&gt;<a name="line.2575"></a>
<FONT color="green">2576</FONT>         *<a name="line.2576"></a>
<FONT color="green">2577</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2577"></a>
<FONT color="green">2578</FONT>         * A &lt;code&gt;null&lt;/code&gt; separator splits on whitespace.&lt;/p&gt;<a name="line.2578"></a>
<FONT color="green">2579</FONT>         *<a name="line.2579"></a>
<FONT color="green">2580</FONT>         * &lt;pre&gt;<a name="line.2580"></a>
<FONT color="green">2581</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens(null, *)               = null<a name="line.2581"></a>
<FONT color="green">2582</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("", *)                 = []<a name="line.2582"></a>
<FONT color="green">2583</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("ab de fg", null)      = ["ab", "de", "fg"]<a name="line.2583"></a>
<FONT color="green">2584</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("ab   de fg", null)    = ["ab", "", "", "de", "fg"]<a name="line.2584"></a>
<FONT color="green">2585</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("ab:cd:ef", ":")       = ["ab", "cd", "ef"]<a name="line.2585"></a>
<FONT color="green">2586</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("ab-!-cd-!-ef", "-!-") = ["ab", "cd", "ef"]<a name="line.2586"></a>
<FONT color="green">2587</FONT>         * &lt;/pre&gt;<a name="line.2587"></a>
<FONT color="green">2588</FONT>         *<a name="line.2588"></a>
<FONT color="green">2589</FONT>         * @param str  the String to parse, may be null<a name="line.2589"></a>
<FONT color="green">2590</FONT>         * @param separator  String containing the String to be used as a delimiter,<a name="line.2590"></a>
<FONT color="green">2591</FONT>         *  &lt;code&gt;null&lt;/code&gt; splits on whitespace<a name="line.2591"></a>
<FONT color="green">2592</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String was input<a name="line.2592"></a>
<FONT color="green">2593</FONT>         * @since 2.4<a name="line.2593"></a>
<FONT color="green">2594</FONT>         */<a name="line.2594"></a>
<FONT color="green">2595</FONT>        public static String[] splitByWholeSeparatorPreserveAllTokens(String str, String separator) {<a name="line.2595"></a>
<FONT color="green">2596</FONT>            return splitByWholeSeparatorWorker(str, separator, -1, true);<a name="line.2596"></a>
<FONT color="green">2597</FONT>        }<a name="line.2597"></a>
<FONT color="green">2598</FONT>    <a name="line.2598"></a>
<FONT color="green">2599</FONT>        /**<a name="line.2599"></a>
<FONT color="green">2600</FONT>         * &lt;p&gt;Splits the provided text into an array, separator string specified.<a name="line.2600"></a>
<FONT color="green">2601</FONT>         * Returns a maximum of &lt;code&gt;max&lt;/code&gt; substrings.&lt;/p&gt;<a name="line.2601"></a>
<FONT color="green">2602</FONT>         *<a name="line.2602"></a>
<FONT color="green">2603</FONT>         * &lt;p&gt;The separator is not included in the returned String array.<a name="line.2603"></a>
<FONT color="green">2604</FONT>         * Adjacent separators are treated as separators for empty tokens.<a name="line.2604"></a>
<FONT color="green">2605</FONT>         * For more control over the split use the StrTokenizer class.&lt;/p&gt;<a name="line.2605"></a>
<FONT color="green">2606</FONT>         *<a name="line.2606"></a>
<FONT color="green">2607</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2607"></a>
<FONT color="green">2608</FONT>         * A &lt;code&gt;null&lt;/code&gt; separator splits on whitespace.&lt;/p&gt;<a name="line.2608"></a>
<FONT color="green">2609</FONT>         *<a name="line.2609"></a>
<FONT color="green">2610</FONT>         * &lt;pre&gt;<a name="line.2610"></a>
<FONT color="green">2611</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens(null, *, *)               = null<a name="line.2611"></a>
<FONT color="green">2612</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("", *, *)                 = []<a name="line.2612"></a>
<FONT color="green">2613</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("ab de fg", null, 0)      = ["ab", "de", "fg"]<a name="line.2613"></a>
<FONT color="green">2614</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("ab   de fg", null, 0)    = ["ab", "", "", "de", "fg"]<a name="line.2614"></a>
<FONT color="green">2615</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("ab:cd:ef", ":", 2)       = ["ab", "cd:ef"]<a name="line.2615"></a>
<FONT color="green">2616</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("ab-!-cd-!-ef", "-!-", 5) = ["ab", "cd", "ef"]<a name="line.2616"></a>
<FONT color="green">2617</FONT>         * StringUtils.splitByWholeSeparatorPreserveAllTokens("ab-!-cd-!-ef", "-!-", 2) = ["ab", "cd-!-ef"]<a name="line.2617"></a>
<FONT color="green">2618</FONT>         * &lt;/pre&gt;<a name="line.2618"></a>
<FONT color="green">2619</FONT>         *<a name="line.2619"></a>
<FONT color="green">2620</FONT>         * @param str  the String to parse, may be null<a name="line.2620"></a>
<FONT color="green">2621</FONT>         * @param separator  String containing the String to be used as a delimiter,<a name="line.2621"></a>
<FONT color="green">2622</FONT>         *  &lt;code&gt;null&lt;/code&gt; splits on whitespace<a name="line.2622"></a>
<FONT color="green">2623</FONT>         * @param max  the maximum number of elements to include in the returned<a name="line.2623"></a>
<FONT color="green">2624</FONT>         *  array. A zero or negative value implies no limit.<a name="line.2624"></a>
<FONT color="green">2625</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String was input<a name="line.2625"></a>
<FONT color="green">2626</FONT>         * @since 2.4<a name="line.2626"></a>
<FONT color="green">2627</FONT>         */<a name="line.2627"></a>
<FONT color="green">2628</FONT>        public static String[] splitByWholeSeparatorPreserveAllTokens(String str, String separator, int max) {<a name="line.2628"></a>
<FONT color="green">2629</FONT>            return splitByWholeSeparatorWorker(str, separator, max, true);<a name="line.2629"></a>
<FONT color="green">2630</FONT>        }<a name="line.2630"></a>
<FONT color="green">2631</FONT>    <a name="line.2631"></a>
<FONT color="green">2632</FONT>        /**<a name="line.2632"></a>
<FONT color="green">2633</FONT>         * Performs the logic for the &lt;code&gt;splitByWholeSeparatorPreserveAllTokens&lt;/code&gt; methods.<a name="line.2633"></a>
<FONT color="green">2634</FONT>         *<a name="line.2634"></a>
<FONT color="green">2635</FONT>         * @param str  the String to parse, may be &lt;code&gt;null&lt;/code&gt;<a name="line.2635"></a>
<FONT color="green">2636</FONT>         * @param separator  String containing the String to be used as a delimiter,<a name="line.2636"></a>
<FONT color="green">2637</FONT>         *  &lt;code&gt;null&lt;/code&gt; splits on whitespace<a name="line.2637"></a>
<FONT color="green">2638</FONT>         * @param max  the maximum number of elements to include in the returned<a name="line.2638"></a>
<FONT color="green">2639</FONT>         *  array. A zero or negative value implies no limit.<a name="line.2639"></a>
<FONT color="green">2640</FONT>         * @param preserveAllTokens if &lt;code&gt;true&lt;/code&gt;, adjacent separators are<a name="line.2640"></a>
<FONT color="green">2641</FONT>         * treated as empty token separators; if &lt;code&gt;false&lt;/code&gt;, adjacent<a name="line.2641"></a>
<FONT color="green">2642</FONT>         * separators are treated as one separator.<a name="line.2642"></a>
<FONT color="green">2643</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2643"></a>
<FONT color="green">2644</FONT>         * @since 2.4<a name="line.2644"></a>
<FONT color="green">2645</FONT>         */<a name="line.2645"></a>
<FONT color="green">2646</FONT>        private static String[] splitByWholeSeparatorWorker(String str, String separator, int max, <a name="line.2646"></a>
<FONT color="green">2647</FONT>                                                            boolean preserveAllTokens) <a name="line.2647"></a>
<FONT color="green">2648</FONT>        {<a name="line.2648"></a>
<FONT color="green">2649</FONT>            if (str == null) {<a name="line.2649"></a>
<FONT color="green">2650</FONT>                return null;<a name="line.2650"></a>
<FONT color="green">2651</FONT>            }<a name="line.2651"></a>
<FONT color="green">2652</FONT>    <a name="line.2652"></a>
<FONT color="green">2653</FONT>            int len = str.length();<a name="line.2653"></a>
<FONT color="green">2654</FONT>    <a name="line.2654"></a>
<FONT color="green">2655</FONT>            if (len == 0) {<a name="line.2655"></a>
<FONT color="green">2656</FONT>                return ArrayUtils.EMPTY_STRING_ARRAY;<a name="line.2656"></a>
<FONT color="green">2657</FONT>            }<a name="line.2657"></a>
<FONT color="green">2658</FONT>    <a name="line.2658"></a>
<FONT color="green">2659</FONT>            if ((separator == null) || (EMPTY.equals(separator))) {<a name="line.2659"></a>
<FONT color="green">2660</FONT>                // Split on whitespace.<a name="line.2660"></a>
<FONT color="green">2661</FONT>                return splitWorker(str, null, max, preserveAllTokens);<a name="line.2661"></a>
<FONT color="green">2662</FONT>            }<a name="line.2662"></a>
<FONT color="green">2663</FONT>    <a name="line.2663"></a>
<FONT color="green">2664</FONT>            int separatorLength = separator.length();<a name="line.2664"></a>
<FONT color="green">2665</FONT>    <a name="line.2665"></a>
<FONT color="green">2666</FONT>            ArrayList substrings = new ArrayList();<a name="line.2666"></a>
<FONT color="green">2667</FONT>            int numberOfSubstrings = 0;<a name="line.2667"></a>
<FONT color="green">2668</FONT>            int beg = 0;<a name="line.2668"></a>
<FONT color="green">2669</FONT>            int end = 0;<a name="line.2669"></a>
<FONT color="green">2670</FONT>            while (end &lt; len) {<a name="line.2670"></a>
<FONT color="green">2671</FONT>                end = str.indexOf(separator, beg);<a name="line.2671"></a>
<FONT color="green">2672</FONT>    <a name="line.2672"></a>
<FONT color="green">2673</FONT>                if (end &gt; -1) {<a name="line.2673"></a>
<FONT color="green">2674</FONT>                    if (end &gt; beg) {<a name="line.2674"></a>
<FONT color="green">2675</FONT>                        numberOfSubstrings += 1;<a name="line.2675"></a>
<FONT color="green">2676</FONT>    <a name="line.2676"></a>
<FONT color="green">2677</FONT>                        if (numberOfSubstrings == max) {<a name="line.2677"></a>
<FONT color="green">2678</FONT>                            end = len;<a name="line.2678"></a>
<FONT color="green">2679</FONT>                            substrings.add(str.substring(beg));<a name="line.2679"></a>
<FONT color="green">2680</FONT>                        } else {<a name="line.2680"></a>
<FONT color="green">2681</FONT>                            // The following is OK, because String.substring( beg, end ) excludes<a name="line.2681"></a>
<FONT color="green">2682</FONT>                            // the character at the position 'end'.<a name="line.2682"></a>
<FONT color="green">2683</FONT>                            substrings.add(str.substring(beg, end));<a name="line.2683"></a>
<FONT color="green">2684</FONT>    <a name="line.2684"></a>
<FONT color="green">2685</FONT>                            // Set the starting point for the next search.<a name="line.2685"></a>
<FONT color="green">2686</FONT>                            // The following is equivalent to beg = end + (separatorLength - 1) + 1,<a name="line.2686"></a>
<FONT color="green">2687</FONT>                            // which is the right calculation:<a name="line.2687"></a>
<FONT color="green">2688</FONT>                            beg = end + separatorLength;<a name="line.2688"></a>
<FONT color="green">2689</FONT>                        }<a name="line.2689"></a>
<FONT color="green">2690</FONT>                    } else {<a name="line.2690"></a>
<FONT color="green">2691</FONT>                        // We found a consecutive occurrence of the separator, so skip it.<a name="line.2691"></a>
<FONT color="green">2692</FONT>                        if (preserveAllTokens) {<a name="line.2692"></a>
<FONT color="green">2693</FONT>                            numberOfSubstrings += 1;<a name="line.2693"></a>
<FONT color="green">2694</FONT>                            if (numberOfSubstrings == max) {<a name="line.2694"></a>
<FONT color="green">2695</FONT>                                end = len;<a name="line.2695"></a>
<FONT color="green">2696</FONT>                                substrings.add(str.substring(beg));<a name="line.2696"></a>
<FONT color="green">2697</FONT>                            } else {<a name="line.2697"></a>
<FONT color="green">2698</FONT>                                substrings.add(EMPTY);<a name="line.2698"></a>
<FONT color="green">2699</FONT>                            }<a name="line.2699"></a>
<FONT color="green">2700</FONT>                        }<a name="line.2700"></a>
<FONT color="green">2701</FONT>                        beg = end + separatorLength;<a name="line.2701"></a>
<FONT color="green">2702</FONT>                    }<a name="line.2702"></a>
<FONT color="green">2703</FONT>                } else {<a name="line.2703"></a>
<FONT color="green">2704</FONT>                    // String.substring( beg ) goes from 'beg' to the end of the String.<a name="line.2704"></a>
<FONT color="green">2705</FONT>                    substrings.add(str.substring(beg));<a name="line.2705"></a>
<FONT color="green">2706</FONT>                    end = len;<a name="line.2706"></a>
<FONT color="green">2707</FONT>                }<a name="line.2707"></a>
<FONT color="green">2708</FONT>            }<a name="line.2708"></a>
<FONT color="green">2709</FONT>    <a name="line.2709"></a>
<FONT color="green">2710</FONT>            return (String[]) substrings.toArray(new String[substrings.size()]);<a name="line.2710"></a>
<FONT color="green">2711</FONT>        }<a name="line.2711"></a>
<FONT color="green">2712</FONT>    <a name="line.2712"></a>
<FONT color="green">2713</FONT>        // -----------------------------------------------------------------------<a name="line.2713"></a>
<FONT color="green">2714</FONT>        /**<a name="line.2714"></a>
<FONT color="green">2715</FONT>         * &lt;p&gt;Splits the provided text into an array, using whitespace as the<a name="line.2715"></a>
<FONT color="green">2716</FONT>         * separator, preserving all tokens, including empty tokens created by <a name="line.2716"></a>
<FONT color="green">2717</FONT>         * adjacent separators. This is an alternative to using StringTokenizer.<a name="line.2717"></a>
<FONT color="green">2718</FONT>         * Whitespace is defined by {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.2718"></a>
<FONT color="green">2719</FONT>         *<a name="line.2719"></a>
<FONT color="green">2720</FONT>         * &lt;p&gt;The separator is not included in the returned String array.<a name="line.2720"></a>
<FONT color="green">2721</FONT>         * Adjacent separators are treated as separators for empty tokens.<a name="line.2721"></a>
<FONT color="green">2722</FONT>         * For more control over the split use the StrTokenizer class.&lt;/p&gt;<a name="line.2722"></a>
<FONT color="green">2723</FONT>         *<a name="line.2723"></a>
<FONT color="green">2724</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.2724"></a>
<FONT color="green">2725</FONT>         *<a name="line.2725"></a>
<FONT color="green">2726</FONT>         * &lt;pre&gt;<a name="line.2726"></a>
<FONT color="green">2727</FONT>         * StringUtils.splitPreserveAllTokens(null)       = null<a name="line.2727"></a>
<FONT color="green">2728</FONT>         * StringUtils.splitPreserveAllTokens("")         = []<a name="line.2728"></a>
<FONT color="green">2729</FONT>         * StringUtils.splitPreserveAllTokens("abc def")  = ["abc", "def"]<a name="line.2729"></a>
<FONT color="green">2730</FONT>         * StringUtils.splitPreserveAllTokens("abc  def") = ["abc", "", "def"]<a name="line.2730"></a>
<FONT color="green">2731</FONT>         * StringUtils.splitPreserveAllTokens(" abc ")    = ["", "abc", ""]<a name="line.2731"></a>
<FONT color="green">2732</FONT>         * &lt;/pre&gt;<a name="line.2732"></a>
<FONT color="green">2733</FONT>         *<a name="line.2733"></a>
<FONT color="green">2734</FONT>         * @param str  the String to parse, may be &lt;code&gt;null&lt;/code&gt;<a name="line.2734"></a>
<FONT color="green">2735</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2735"></a>
<FONT color="green">2736</FONT>         * @since 2.1<a name="line.2736"></a>
<FONT color="green">2737</FONT>         */<a name="line.2737"></a>
<FONT color="green">2738</FONT>        public static String[] splitPreserveAllTokens(String str) {<a name="line.2738"></a>
<FONT color="green">2739</FONT>            return splitWorker(str, null, -1, true);<a name="line.2739"></a>
<FONT color="green">2740</FONT>        }<a name="line.2740"></a>
<FONT color="green">2741</FONT>    <a name="line.2741"></a>
<FONT color="green">2742</FONT>        /**<a name="line.2742"></a>
<FONT color="green">2743</FONT>         * &lt;p&gt;Splits the provided text into an array, separator specified,<a name="line.2743"></a>
<FONT color="green">2744</FONT>         * preserving all tokens, including empty tokens created by adjacent<a name="line.2744"></a>
<FONT color="green">2745</FONT>         * separators. This is an alternative to using StringTokenizer.&lt;/p&gt;<a name="line.2745"></a>
<FONT color="green">2746</FONT>         *<a name="line.2746"></a>
<FONT color="green">2747</FONT>         * &lt;p&gt;The separator is not included in the returned String array.<a name="line.2747"></a>
<FONT color="green">2748</FONT>         * Adjacent separators are treated as separators for empty tokens.<a name="line.2748"></a>
<FONT color="green">2749</FONT>         * For more control over the split use the StrTokenizer class.&lt;/p&gt;<a name="line.2749"></a>
<FONT color="green">2750</FONT>         *<a name="line.2750"></a>
<FONT color="green">2751</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.2751"></a>
<FONT color="green">2752</FONT>         *<a name="line.2752"></a>
<FONT color="green">2753</FONT>         * &lt;pre&gt;<a name="line.2753"></a>
<FONT color="green">2754</FONT>         * StringUtils.splitPreserveAllTokens(null, *)         = null<a name="line.2754"></a>
<FONT color="green">2755</FONT>         * StringUtils.splitPreserveAllTokens("", *)           = []<a name="line.2755"></a>
<FONT color="green">2756</FONT>         * StringUtils.splitPreserveAllTokens("a.b.c", '.')    = ["a", "b", "c"]<a name="line.2756"></a>
<FONT color="green">2757</FONT>         * StringUtils.splitPreserveAllTokens("a..b.c", '.')   = ["a", "", "b", "c"]<a name="line.2757"></a>
<FONT color="green">2758</FONT>         * StringUtils.splitPreserveAllTokens("a:b:c", '.')    = ["a:b:c"]<a name="line.2758"></a>
<FONT color="green">2759</FONT>         * StringUtils.splitPreserveAllTokens("a\tb\nc", null) = ["a", "b", "c"]<a name="line.2759"></a>
<FONT color="green">2760</FONT>         * StringUtils.splitPreserveAllTokens("a b c", ' ')    = ["a", "b", "c"]<a name="line.2760"></a>
<FONT color="green">2761</FONT>         * StringUtils.splitPreserveAllTokens("a b c ", ' ')   = ["a", "b", "c", ""]<a name="line.2761"></a>
<FONT color="green">2762</FONT>         * StringUtils.splitPreserveAllTokens("a b c  ", ' ')   = ["a", "b", "c", "", ""]<a name="line.2762"></a>
<FONT color="green">2763</FONT>         * StringUtils.splitPreserveAllTokens(" a b c", ' ')   = ["", a", "b", "c"]<a name="line.2763"></a>
<FONT color="green">2764</FONT>         * StringUtils.splitPreserveAllTokens("  a b c", ' ')  = ["", "", a", "b", "c"]<a name="line.2764"></a>
<FONT color="green">2765</FONT>         * StringUtils.splitPreserveAllTokens(" a b c ", ' ')  = ["", a", "b", "c", ""]<a name="line.2765"></a>
<FONT color="green">2766</FONT>         * &lt;/pre&gt;<a name="line.2766"></a>
<FONT color="green">2767</FONT>         *<a name="line.2767"></a>
<FONT color="green">2768</FONT>         * @param str  the String to parse, may be &lt;code&gt;null&lt;/code&gt;<a name="line.2768"></a>
<FONT color="green">2769</FONT>         * @param separatorChar  the character used as the delimiter,<a name="line.2769"></a>
<FONT color="green">2770</FONT>         *  &lt;code&gt;null&lt;/code&gt; splits on whitespace<a name="line.2770"></a>
<FONT color="green">2771</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2771"></a>
<FONT color="green">2772</FONT>         * @since 2.1<a name="line.2772"></a>
<FONT color="green">2773</FONT>         */<a name="line.2773"></a>
<FONT color="green">2774</FONT>        public static String[] splitPreserveAllTokens(String str, char separatorChar) {<a name="line.2774"></a>
<FONT color="green">2775</FONT>            return splitWorker(str, separatorChar, true);<a name="line.2775"></a>
<FONT color="green">2776</FONT>        }<a name="line.2776"></a>
<FONT color="green">2777</FONT>    <a name="line.2777"></a>
<FONT color="green">2778</FONT>        /**<a name="line.2778"></a>
<FONT color="green">2779</FONT>         * Performs the logic for the &lt;code&gt;split&lt;/code&gt; and <a name="line.2779"></a>
<FONT color="green">2780</FONT>         * &lt;code&gt;splitPreserveAllTokens&lt;/code&gt; methods that do not return a<a name="line.2780"></a>
<FONT color="green">2781</FONT>         * maximum array length.<a name="line.2781"></a>
<FONT color="green">2782</FONT>         *<a name="line.2782"></a>
<FONT color="green">2783</FONT>         * @param str  the String to parse, may be &lt;code&gt;null&lt;/code&gt;<a name="line.2783"></a>
<FONT color="green">2784</FONT>         * @param separatorChar the separate character<a name="line.2784"></a>
<FONT color="green">2785</FONT>         * @param preserveAllTokens if &lt;code&gt;true&lt;/code&gt;, adjacent separators are<a name="line.2785"></a>
<FONT color="green">2786</FONT>         * treated as empty token separators; if &lt;code&gt;false&lt;/code&gt;, adjacent<a name="line.2786"></a>
<FONT color="green">2787</FONT>         * separators are treated as one separator.<a name="line.2787"></a>
<FONT color="green">2788</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2788"></a>
<FONT color="green">2789</FONT>         */<a name="line.2789"></a>
<FONT color="green">2790</FONT>        private static String[] splitWorker(String str, char separatorChar, boolean preserveAllTokens) {<a name="line.2790"></a>
<FONT color="green">2791</FONT>            // Performance tuned for 2.0 (JDK1.4)<a name="line.2791"></a>
<FONT color="green">2792</FONT>    <a name="line.2792"></a>
<FONT color="green">2793</FONT>            if (str == null) {<a name="line.2793"></a>
<FONT color="green">2794</FONT>                return null;<a name="line.2794"></a>
<FONT color="green">2795</FONT>            }<a name="line.2795"></a>
<FONT color="green">2796</FONT>            int len = str.length();<a name="line.2796"></a>
<FONT color="green">2797</FONT>            if (len == 0) {<a name="line.2797"></a>
<FONT color="green">2798</FONT>                return ArrayUtils.EMPTY_STRING_ARRAY;<a name="line.2798"></a>
<FONT color="green">2799</FONT>            }<a name="line.2799"></a>
<FONT color="green">2800</FONT>            List list = new ArrayList();<a name="line.2800"></a>
<FONT color="green">2801</FONT>            int i = 0, start = 0;<a name="line.2801"></a>
<FONT color="green">2802</FONT>            boolean match = false;<a name="line.2802"></a>
<FONT color="green">2803</FONT>            boolean lastMatch = false;<a name="line.2803"></a>
<FONT color="green">2804</FONT>            while (i &lt; len) {<a name="line.2804"></a>
<FONT color="green">2805</FONT>                if (str.charAt(i) == separatorChar) {<a name="line.2805"></a>
<FONT color="green">2806</FONT>                    if (match || preserveAllTokens) {<a name="line.2806"></a>
<FONT color="green">2807</FONT>                        list.add(str.substring(start, i));<a name="line.2807"></a>
<FONT color="green">2808</FONT>                        match = false;<a name="line.2808"></a>
<FONT color="green">2809</FONT>                        lastMatch = true;<a name="line.2809"></a>
<FONT color="green">2810</FONT>                    }<a name="line.2810"></a>
<FONT color="green">2811</FONT>                    start = ++i;<a name="line.2811"></a>
<FONT color="green">2812</FONT>                    continue;<a name="line.2812"></a>
<FONT color="green">2813</FONT>                }<a name="line.2813"></a>
<FONT color="green">2814</FONT>                lastMatch = false;<a name="line.2814"></a>
<FONT color="green">2815</FONT>                match = true;<a name="line.2815"></a>
<FONT color="green">2816</FONT>                i++;<a name="line.2816"></a>
<FONT color="green">2817</FONT>            }<a name="line.2817"></a>
<FONT color="green">2818</FONT>            if (match || (preserveAllTokens &amp;&amp; lastMatch)) {<a name="line.2818"></a>
<FONT color="green">2819</FONT>                list.add(str.substring(start, i));<a name="line.2819"></a>
<FONT color="green">2820</FONT>            }<a name="line.2820"></a>
<FONT color="green">2821</FONT>            return (String[]) list.toArray(new String[list.size()]);<a name="line.2821"></a>
<FONT color="green">2822</FONT>        }<a name="line.2822"></a>
<FONT color="green">2823</FONT>    <a name="line.2823"></a>
<FONT color="green">2824</FONT>        /**<a name="line.2824"></a>
<FONT color="green">2825</FONT>         * &lt;p&gt;Splits the provided text into an array, separators specified, <a name="line.2825"></a>
<FONT color="green">2826</FONT>         * preserving all tokens, including empty tokens created by adjacent<a name="line.2826"></a>
<FONT color="green">2827</FONT>         * separators. This is an alternative to using StringTokenizer.&lt;/p&gt;<a name="line.2827"></a>
<FONT color="green">2828</FONT>         *<a name="line.2828"></a>
<FONT color="green">2829</FONT>         * &lt;p&gt;The separator is not included in the returned String array.<a name="line.2829"></a>
<FONT color="green">2830</FONT>         * Adjacent separators are treated as separators for empty tokens.<a name="line.2830"></a>
<FONT color="green">2831</FONT>         * For more control over the split use the StrTokenizer class.&lt;/p&gt;<a name="line.2831"></a>
<FONT color="green">2832</FONT>         *<a name="line.2832"></a>
<FONT color="green">2833</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2833"></a>
<FONT color="green">2834</FONT>         * A &lt;code&gt;null&lt;/code&gt; separatorChars splits on whitespace.&lt;/p&gt;<a name="line.2834"></a>
<FONT color="green">2835</FONT>         *<a name="line.2835"></a>
<FONT color="green">2836</FONT>         * &lt;pre&gt;<a name="line.2836"></a>
<FONT color="green">2837</FONT>         * StringUtils.splitPreserveAllTokens(null, *)           = null<a name="line.2837"></a>
<FONT color="green">2838</FONT>         * StringUtils.splitPreserveAllTokens("", *)             = []<a name="line.2838"></a>
<FONT color="green">2839</FONT>         * StringUtils.splitPreserveAllTokens("abc def", null)   = ["abc", "def"]<a name="line.2839"></a>
<FONT color="green">2840</FONT>         * StringUtils.splitPreserveAllTokens("abc def", " ")    = ["abc", "def"]<a name="line.2840"></a>
<FONT color="green">2841</FONT>         * StringUtils.splitPreserveAllTokens("abc  def", " ")   = ["abc", "", def"]<a name="line.2841"></a>
<FONT color="green">2842</FONT>         * StringUtils.splitPreserveAllTokens("ab:cd:ef", ":")   = ["ab", "cd", "ef"]<a name="line.2842"></a>
<FONT color="green">2843</FONT>         * StringUtils.splitPreserveAllTokens("ab:cd:ef:", ":")  = ["ab", "cd", "ef", ""]<a name="line.2843"></a>
<FONT color="green">2844</FONT>         * StringUtils.splitPreserveAllTokens("ab:cd:ef::", ":") = ["ab", "cd", "ef", "", ""]<a name="line.2844"></a>
<FONT color="green">2845</FONT>         * StringUtils.splitPreserveAllTokens("ab::cd:ef", ":")  = ["ab", "", cd", "ef"]<a name="line.2845"></a>
<FONT color="green">2846</FONT>         * StringUtils.splitPreserveAllTokens(":cd:ef", ":")     = ["", cd", "ef"]<a name="line.2846"></a>
<FONT color="green">2847</FONT>         * StringUtils.splitPreserveAllTokens("::cd:ef", ":")    = ["", "", cd", "ef"]<a name="line.2847"></a>
<FONT color="green">2848</FONT>         * StringUtils.splitPreserveAllTokens(":cd:ef:", ":")    = ["", cd", "ef", ""]<a name="line.2848"></a>
<FONT color="green">2849</FONT>         * &lt;/pre&gt;<a name="line.2849"></a>
<FONT color="green">2850</FONT>         *<a name="line.2850"></a>
<FONT color="green">2851</FONT>         * @param str  the String to parse, may be &lt;code&gt;null&lt;/code&gt;<a name="line.2851"></a>
<FONT color="green">2852</FONT>         * @param separatorChars  the characters used as the delimiters,<a name="line.2852"></a>
<FONT color="green">2853</FONT>         *  &lt;code&gt;null&lt;/code&gt; splits on whitespace<a name="line.2853"></a>
<FONT color="green">2854</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2854"></a>
<FONT color="green">2855</FONT>         * @since 2.1<a name="line.2855"></a>
<FONT color="green">2856</FONT>         */<a name="line.2856"></a>
<FONT color="green">2857</FONT>        public static String[] splitPreserveAllTokens(String str, String separatorChars) {<a name="line.2857"></a>
<FONT color="green">2858</FONT>            return splitWorker(str, separatorChars, -1, true);<a name="line.2858"></a>
<FONT color="green">2859</FONT>        }<a name="line.2859"></a>
<FONT color="green">2860</FONT>    <a name="line.2860"></a>
<FONT color="green">2861</FONT>        /**<a name="line.2861"></a>
<FONT color="green">2862</FONT>         * &lt;p&gt;Splits the provided text into an array with a maximum length,<a name="line.2862"></a>
<FONT color="green">2863</FONT>         * separators specified, preserving all tokens, including empty tokens <a name="line.2863"></a>
<FONT color="green">2864</FONT>         * created by adjacent separators.&lt;/p&gt;<a name="line.2864"></a>
<FONT color="green">2865</FONT>         *<a name="line.2865"></a>
<FONT color="green">2866</FONT>         * &lt;p&gt;The separator is not included in the returned String array.<a name="line.2866"></a>
<FONT color="green">2867</FONT>         * Adjacent separators are treated as separators for empty tokens.<a name="line.2867"></a>
<FONT color="green">2868</FONT>         * Adjacent separators are treated as one separator.&lt;/p&gt;<a name="line.2868"></a>
<FONT color="green">2869</FONT>         *<a name="line.2869"></a>
<FONT color="green">2870</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.2870"></a>
<FONT color="green">2871</FONT>         * A &lt;code&gt;null&lt;/code&gt; separatorChars splits on whitespace.&lt;/p&gt;<a name="line.2871"></a>
<FONT color="green">2872</FONT>         *<a name="line.2872"></a>
<FONT color="green">2873</FONT>         * &lt;p&gt;If more than &lt;code&gt;max&lt;/code&gt; delimited substrings are found, the last<a name="line.2873"></a>
<FONT color="green">2874</FONT>         * returned string includes all characters after the first &lt;code&gt;max - 1&lt;/code&gt;<a name="line.2874"></a>
<FONT color="green">2875</FONT>         * returned strings (including separator characters).&lt;/p&gt;<a name="line.2875"></a>
<FONT color="green">2876</FONT>         *<a name="line.2876"></a>
<FONT color="green">2877</FONT>         * &lt;pre&gt;<a name="line.2877"></a>
<FONT color="green">2878</FONT>         * StringUtils.splitPreserveAllTokens(null, *, *)            = null<a name="line.2878"></a>
<FONT color="green">2879</FONT>         * StringUtils.splitPreserveAllTokens("", *, *)              = []<a name="line.2879"></a>
<FONT color="green">2880</FONT>         * StringUtils.splitPreserveAllTokens("ab de fg", null, 0)   = ["ab", "cd", "ef"]<a name="line.2880"></a>
<FONT color="green">2881</FONT>         * StringUtils.splitPreserveAllTokens("ab   de fg", null, 0) = ["ab", "cd", "ef"]<a name="line.2881"></a>
<FONT color="green">2882</FONT>         * StringUtils.splitPreserveAllTokens("ab:cd:ef", ":", 0)    = ["ab", "cd", "ef"]<a name="line.2882"></a>
<FONT color="green">2883</FONT>         * StringUtils.splitPreserveAllTokens("ab:cd:ef", ":", 2)    = ["ab", "cd:ef"]<a name="line.2883"></a>
<FONT color="green">2884</FONT>         * StringUtils.splitPreserveAllTokens("ab   de fg", null, 2) = ["ab", "  de fg"]<a name="line.2884"></a>
<FONT color="green">2885</FONT>         * StringUtils.splitPreserveAllTokens("ab   de fg", null, 3) = ["ab", "", " de fg"]<a name="line.2885"></a>
<FONT color="green">2886</FONT>         * StringUtils.splitPreserveAllTokens("ab   de fg", null, 4) = ["ab", "", "", "de fg"]<a name="line.2886"></a>
<FONT color="green">2887</FONT>         * &lt;/pre&gt;<a name="line.2887"></a>
<FONT color="green">2888</FONT>         *<a name="line.2888"></a>
<FONT color="green">2889</FONT>         * @param str  the String to parse, may be &lt;code&gt;null&lt;/code&gt;<a name="line.2889"></a>
<FONT color="green">2890</FONT>         * @param separatorChars  the characters used as the delimiters,<a name="line.2890"></a>
<FONT color="green">2891</FONT>         *  &lt;code&gt;null&lt;/code&gt; splits on whitespace<a name="line.2891"></a>
<FONT color="green">2892</FONT>         * @param max  the maximum number of elements to include in the<a name="line.2892"></a>
<FONT color="green">2893</FONT>         *  array. A zero or negative value implies no limit<a name="line.2893"></a>
<FONT color="green">2894</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2894"></a>
<FONT color="green">2895</FONT>         * @since 2.1<a name="line.2895"></a>
<FONT color="green">2896</FONT>         */<a name="line.2896"></a>
<FONT color="green">2897</FONT>        public static String[] splitPreserveAllTokens(String str, String separatorChars, int max) {<a name="line.2897"></a>
<FONT color="green">2898</FONT>            return splitWorker(str, separatorChars, max, true);<a name="line.2898"></a>
<FONT color="green">2899</FONT>        }<a name="line.2899"></a>
<FONT color="green">2900</FONT>    <a name="line.2900"></a>
<FONT color="green">2901</FONT>        /**<a name="line.2901"></a>
<FONT color="green">2902</FONT>         * Performs the logic for the &lt;code&gt;split&lt;/code&gt; and <a name="line.2902"></a>
<FONT color="green">2903</FONT>         * &lt;code&gt;splitPreserveAllTokens&lt;/code&gt; methods that return a maximum array <a name="line.2903"></a>
<FONT color="green">2904</FONT>         * length.<a name="line.2904"></a>
<FONT color="green">2905</FONT>         *<a name="line.2905"></a>
<FONT color="green">2906</FONT>         * @param str  the String to parse, may be &lt;code&gt;null&lt;/code&gt;<a name="line.2906"></a>
<FONT color="green">2907</FONT>         * @param separatorChars the separate character<a name="line.2907"></a>
<FONT color="green">2908</FONT>         * @param max  the maximum number of elements to include in the<a name="line.2908"></a>
<FONT color="green">2909</FONT>         *  array. A zero or negative value implies no limit.<a name="line.2909"></a>
<FONT color="green">2910</FONT>         * @param preserveAllTokens if &lt;code&gt;true&lt;/code&gt;, adjacent separators are<a name="line.2910"></a>
<FONT color="green">2911</FONT>         * treated as empty token separators; if &lt;code&gt;false&lt;/code&gt;, adjacent<a name="line.2911"></a>
<FONT color="green">2912</FONT>         * separators are treated as one separator.<a name="line.2912"></a>
<FONT color="green">2913</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.2913"></a>
<FONT color="green">2914</FONT>         */<a name="line.2914"></a>
<FONT color="green">2915</FONT>        private static String[] splitWorker(String str, String separatorChars, int max, boolean preserveAllTokens) {<a name="line.2915"></a>
<FONT color="green">2916</FONT>            // Performance tuned for 2.0 (JDK1.4)<a name="line.2916"></a>
<FONT color="green">2917</FONT>            // Direct code is quicker than StringTokenizer.<a name="line.2917"></a>
<FONT color="green">2918</FONT>            // Also, StringTokenizer uses isSpace() not isWhitespace()<a name="line.2918"></a>
<FONT color="green">2919</FONT>    <a name="line.2919"></a>
<FONT color="green">2920</FONT>            if (str == null) {<a name="line.2920"></a>
<FONT color="green">2921</FONT>                return null;<a name="line.2921"></a>
<FONT color="green">2922</FONT>            }<a name="line.2922"></a>
<FONT color="green">2923</FONT>            int len = str.length();<a name="line.2923"></a>
<FONT color="green">2924</FONT>            if (len == 0) {<a name="line.2924"></a>
<FONT color="green">2925</FONT>                return ArrayUtils.EMPTY_STRING_ARRAY;<a name="line.2925"></a>
<FONT color="green">2926</FONT>            }<a name="line.2926"></a>
<FONT color="green">2927</FONT>            List list = new ArrayList();<a name="line.2927"></a>
<FONT color="green">2928</FONT>            int sizePlus1 = 1;<a name="line.2928"></a>
<FONT color="green">2929</FONT>            int i = 0, start = 0;<a name="line.2929"></a>
<FONT color="green">2930</FONT>            boolean match = false;<a name="line.2930"></a>
<FONT color="green">2931</FONT>            boolean lastMatch = false;<a name="line.2931"></a>
<FONT color="green">2932</FONT>            if (separatorChars == null) {<a name="line.2932"></a>
<FONT color="green">2933</FONT>                // Null separator means use whitespace<a name="line.2933"></a>
<FONT color="green">2934</FONT>                while (i &lt; len) {<a name="line.2934"></a>
<FONT color="green">2935</FONT>                    if (Character.isWhitespace(str.charAt(i))) {<a name="line.2935"></a>
<FONT color="green">2936</FONT>                        if (match || preserveAllTokens) {<a name="line.2936"></a>
<FONT color="green">2937</FONT>                            lastMatch = true;<a name="line.2937"></a>
<FONT color="green">2938</FONT>                            if (sizePlus1++ == max) {<a name="line.2938"></a>
<FONT color="green">2939</FONT>                                i = len;<a name="line.2939"></a>
<FONT color="green">2940</FONT>                                lastMatch = false;<a name="line.2940"></a>
<FONT color="green">2941</FONT>                            }<a name="line.2941"></a>
<FONT color="green">2942</FONT>                            list.add(str.substring(start, i));<a name="line.2942"></a>
<FONT color="green">2943</FONT>                            match = false;<a name="line.2943"></a>
<FONT color="green">2944</FONT>                        }<a name="line.2944"></a>
<FONT color="green">2945</FONT>                        start = ++i;<a name="line.2945"></a>
<FONT color="green">2946</FONT>                        continue;<a name="line.2946"></a>
<FONT color="green">2947</FONT>                    }<a name="line.2947"></a>
<FONT color="green">2948</FONT>                    lastMatch = false;<a name="line.2948"></a>
<FONT color="green">2949</FONT>                    match = true;<a name="line.2949"></a>
<FONT color="green">2950</FONT>                    i++;<a name="line.2950"></a>
<FONT color="green">2951</FONT>                }<a name="line.2951"></a>
<FONT color="green">2952</FONT>            } else if (separatorChars.length() == 1) {<a name="line.2952"></a>
<FONT color="green">2953</FONT>                // Optimise 1 character case<a name="line.2953"></a>
<FONT color="green">2954</FONT>                char sep = separatorChars.charAt(0);<a name="line.2954"></a>
<FONT color="green">2955</FONT>                while (i &lt; len) {<a name="line.2955"></a>
<FONT color="green">2956</FONT>                    if (str.charAt(i) == sep) {<a name="line.2956"></a>
<FONT color="green">2957</FONT>                        if (match || preserveAllTokens) {<a name="line.2957"></a>
<FONT color="green">2958</FONT>                            lastMatch = true;<a name="line.2958"></a>
<FONT color="green">2959</FONT>                            if (sizePlus1++ == max) {<a name="line.2959"></a>
<FONT color="green">2960</FONT>                                i = len;<a name="line.2960"></a>
<FONT color="green">2961</FONT>                                lastMatch = false;<a name="line.2961"></a>
<FONT color="green">2962</FONT>                            }<a name="line.2962"></a>
<FONT color="green">2963</FONT>                            list.add(str.substring(start, i));<a name="line.2963"></a>
<FONT color="green">2964</FONT>                            match = false;<a name="line.2964"></a>
<FONT color="green">2965</FONT>                        }<a name="line.2965"></a>
<FONT color="green">2966</FONT>                        start = ++i;<a name="line.2966"></a>
<FONT color="green">2967</FONT>                        continue;<a name="line.2967"></a>
<FONT color="green">2968</FONT>                    }<a name="line.2968"></a>
<FONT color="green">2969</FONT>                    lastMatch = false;<a name="line.2969"></a>
<FONT color="green">2970</FONT>                    match = true;<a name="line.2970"></a>
<FONT color="green">2971</FONT>                    i++;<a name="line.2971"></a>
<FONT color="green">2972</FONT>                }<a name="line.2972"></a>
<FONT color="green">2973</FONT>            } else {<a name="line.2973"></a>
<FONT color="green">2974</FONT>                // standard case<a name="line.2974"></a>
<FONT color="green">2975</FONT>                while (i &lt; len) {<a name="line.2975"></a>
<FONT color="green">2976</FONT>                    if (separatorChars.indexOf(str.charAt(i)) &gt;= 0) {<a name="line.2976"></a>
<FONT color="green">2977</FONT>                        if (match || preserveAllTokens) {<a name="line.2977"></a>
<FONT color="green">2978</FONT>                            lastMatch = true;<a name="line.2978"></a>
<FONT color="green">2979</FONT>                            if (sizePlus1++ == max) {<a name="line.2979"></a>
<FONT color="green">2980</FONT>                                i = len;<a name="line.2980"></a>
<FONT color="green">2981</FONT>                                lastMatch = false;<a name="line.2981"></a>
<FONT color="green">2982</FONT>                            }<a name="line.2982"></a>
<FONT color="green">2983</FONT>                            list.add(str.substring(start, i));<a name="line.2983"></a>
<FONT color="green">2984</FONT>                            match = false;<a name="line.2984"></a>
<FONT color="green">2985</FONT>                        }<a name="line.2985"></a>
<FONT color="green">2986</FONT>                        start = ++i;<a name="line.2986"></a>
<FONT color="green">2987</FONT>                        continue;<a name="line.2987"></a>
<FONT color="green">2988</FONT>                    }<a name="line.2988"></a>
<FONT color="green">2989</FONT>                    lastMatch = false;<a name="line.2989"></a>
<FONT color="green">2990</FONT>                    match = true;<a name="line.2990"></a>
<FONT color="green">2991</FONT>                    i++;<a name="line.2991"></a>
<FONT color="green">2992</FONT>                }<a name="line.2992"></a>
<FONT color="green">2993</FONT>            }<a name="line.2993"></a>
<FONT color="green">2994</FONT>            if (match || (preserveAllTokens &amp;&amp; lastMatch)) {<a name="line.2994"></a>
<FONT color="green">2995</FONT>                list.add(str.substring(start, i));<a name="line.2995"></a>
<FONT color="green">2996</FONT>            }<a name="line.2996"></a>
<FONT color="green">2997</FONT>            return (String[]) list.toArray(new String[list.size()]);<a name="line.2997"></a>
<FONT color="green">2998</FONT>        }<a name="line.2998"></a>
<FONT color="green">2999</FONT>    <a name="line.2999"></a>
<FONT color="green">3000</FONT>        /**<a name="line.3000"></a>
<FONT color="green">3001</FONT>         * &lt;p&gt;Splits a String by Character type as returned by<a name="line.3001"></a>
<FONT color="green">3002</FONT>         * &lt;code&gt;java.lang.Character.getType(char)&lt;/code&gt;. Groups of contiguous<a name="line.3002"></a>
<FONT color="green">3003</FONT>         * characters of the same type are returned as complete tokens. <a name="line.3003"></a>
<FONT color="green">3004</FONT>         * &lt;pre&gt;<a name="line.3004"></a>
<FONT color="green">3005</FONT>         * StringUtils.splitByCharacterType(null)         = null<a name="line.3005"></a>
<FONT color="green">3006</FONT>         * StringUtils.splitByCharacterType("")           = []<a name="line.3006"></a>
<FONT color="green">3007</FONT>         * StringUtils.splitByCharacterType("ab de fg")   = ["ab", " ", "de", " ", "fg"]<a name="line.3007"></a>
<FONT color="green">3008</FONT>         * StringUtils.splitByCharacterType("ab   de fg") = ["ab", "   ", "de", " ", "fg"]<a name="line.3008"></a>
<FONT color="green">3009</FONT>         * StringUtils.splitByCharacterType("ab:cd:ef")   = ["ab", ":", "cd", ":", "ef"]<a name="line.3009"></a>
<FONT color="green">3010</FONT>         * StringUtils.splitByCharacterType("number5")    = ["number", "5"]<a name="line.3010"></a>
<FONT color="green">3011</FONT>         * StringUtils.splitByCharacterType("fooBar")     = ["foo", "B", "ar"]<a name="line.3011"></a>
<FONT color="green">3012</FONT>         * StringUtils.splitByCharacterType("foo200Bar")  = ["foo", "200", "B", "ar"]<a name="line.3012"></a>
<FONT color="green">3013</FONT>         * StringUtils.splitByCharacterType("ASFRules")   = ["ASFR", "ules"]<a name="line.3013"></a>
<FONT color="green">3014</FONT>         * &lt;/pre&gt;<a name="line.3014"></a>
<FONT color="green">3015</FONT>         * @param str the String to split, may be &lt;code&gt;null&lt;/code&gt;<a name="line.3015"></a>
<FONT color="green">3016</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3016"></a>
<FONT color="green">3017</FONT>         * @since 2.4<a name="line.3017"></a>
<FONT color="green">3018</FONT>         */<a name="line.3018"></a>
<FONT color="green">3019</FONT>        public static String[] splitByCharacterType(String str) {<a name="line.3019"></a>
<FONT color="green">3020</FONT>            return splitByCharacterType(str, false);<a name="line.3020"></a>
<FONT color="green">3021</FONT>        }<a name="line.3021"></a>
<FONT color="green">3022</FONT>    <a name="line.3022"></a>
<FONT color="green">3023</FONT>        /**<a name="line.3023"></a>
<FONT color="green">3024</FONT>         * &lt;p&gt;Splits a String by Character type as returned by<a name="line.3024"></a>
<FONT color="green">3025</FONT>         * &lt;code&gt;java.lang.Character.getType(char)&lt;/code&gt;. Groups of contiguous<a name="line.3025"></a>
<FONT color="green">3026</FONT>         * characters of the same type are returned as complete tokens, with the<a name="line.3026"></a>
<FONT color="green">3027</FONT>         * following exception: the character of type<a name="line.3027"></a>
<FONT color="green">3028</FONT>         * &lt;code&gt;Character.UPPERCASE_LETTER&lt;/code&gt;, if any, immediately<a name="line.3028"></a>
<FONT color="green">3029</FONT>         * preceding a token of type &lt;code&gt;Character.LOWERCASE_LETTER&lt;/code&gt;<a name="line.3029"></a>
<FONT color="green">3030</FONT>         * will belong to the following token rather than to the preceding, if any,<a name="line.3030"></a>
<FONT color="green">3031</FONT>         * &lt;code&gt;Character.UPPERCASE_LETTER&lt;/code&gt; token. <a name="line.3031"></a>
<FONT color="green">3032</FONT>         * &lt;pre&gt;<a name="line.3032"></a>
<FONT color="green">3033</FONT>         * StringUtils.splitByCharacterTypeCamelCase(null)         = null<a name="line.3033"></a>
<FONT color="green">3034</FONT>         * StringUtils.splitByCharacterTypeCamelCase("")           = []<a name="line.3034"></a>
<FONT color="green">3035</FONT>         * StringUtils.splitByCharacterTypeCamelCase("ab de fg")   = ["ab", " ", "de", " ", "fg"]<a name="line.3035"></a>
<FONT color="green">3036</FONT>         * StringUtils.splitByCharacterTypeCamelCase("ab   de fg") = ["ab", "   ", "de", " ", "fg"]<a name="line.3036"></a>
<FONT color="green">3037</FONT>         * StringUtils.splitByCharacterTypeCamelCase("ab:cd:ef")   = ["ab", ":", "cd", ":", "ef"]<a name="line.3037"></a>
<FONT color="green">3038</FONT>         * StringUtils.splitByCharacterTypeCamelCase("number5")    = ["number", "5"]<a name="line.3038"></a>
<FONT color="green">3039</FONT>         * StringUtils.splitByCharacterTypeCamelCase("fooBar")     = ["foo", "Bar"]<a name="line.3039"></a>
<FONT color="green">3040</FONT>         * StringUtils.splitByCharacterTypeCamelCase("foo200Bar")  = ["foo", "200", "Bar"]<a name="line.3040"></a>
<FONT color="green">3041</FONT>         * StringUtils.splitByCharacterTypeCamelCase("ASFRules")   = ["ASF", "Rules"]<a name="line.3041"></a>
<FONT color="green">3042</FONT>         * &lt;/pre&gt;<a name="line.3042"></a>
<FONT color="green">3043</FONT>         * @param str the String to split, may be &lt;code&gt;null&lt;/code&gt;<a name="line.3043"></a>
<FONT color="green">3044</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3044"></a>
<FONT color="green">3045</FONT>         * @since 2.4<a name="line.3045"></a>
<FONT color="green">3046</FONT>         */<a name="line.3046"></a>
<FONT color="green">3047</FONT>        public static String[] splitByCharacterTypeCamelCase(String str) {<a name="line.3047"></a>
<FONT color="green">3048</FONT>            return splitByCharacterType(str, true);<a name="line.3048"></a>
<FONT color="green">3049</FONT>        }<a name="line.3049"></a>
<FONT color="green">3050</FONT>    <a name="line.3050"></a>
<FONT color="green">3051</FONT>        /**<a name="line.3051"></a>
<FONT color="green">3052</FONT>         * &lt;p&gt;Splits a String by Character type as returned by<a name="line.3052"></a>
<FONT color="green">3053</FONT>         * &lt;code&gt;java.lang.Character.getType(char)&lt;/code&gt;. Groups of contiguous<a name="line.3053"></a>
<FONT color="green">3054</FONT>         * characters of the same type are returned as complete tokens, with the<a name="line.3054"></a>
<FONT color="green">3055</FONT>         * following exception: if &lt;code&gt;camelCase&lt;/code&gt; is &lt;code&gt;true&lt;/code&gt;,<a name="line.3055"></a>
<FONT color="green">3056</FONT>         * the character of type &lt;code&gt;Character.UPPERCASE_LETTER&lt;/code&gt;, if any,<a name="line.3056"></a>
<FONT color="green">3057</FONT>         * immediately preceding a token of type &lt;code&gt;Character.LOWERCASE_LETTER&lt;/code&gt;<a name="line.3057"></a>
<FONT color="green">3058</FONT>         * will belong to the following token rather than to the preceding, if any,<a name="line.3058"></a>
<FONT color="green">3059</FONT>         * &lt;code&gt;Character.UPPERCASE_LETTER&lt;/code&gt; token. <a name="line.3059"></a>
<FONT color="green">3060</FONT>         * @param str the String to split, may be &lt;code&gt;null&lt;/code&gt;<a name="line.3060"></a>
<FONT color="green">3061</FONT>         * @param camelCase whether to use so-called "camel-case" for letter types<a name="line.3061"></a>
<FONT color="green">3062</FONT>         * @return an array of parsed Strings, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3062"></a>
<FONT color="green">3063</FONT>         * @since 2.4<a name="line.3063"></a>
<FONT color="green">3064</FONT>         */<a name="line.3064"></a>
<FONT color="green">3065</FONT>        private static String[] splitByCharacterType(String str, boolean camelCase) {<a name="line.3065"></a>
<FONT color="green">3066</FONT>            if (str == null) {<a name="line.3066"></a>
<FONT color="green">3067</FONT>                return null;<a name="line.3067"></a>
<FONT color="green">3068</FONT>            }<a name="line.3068"></a>
<FONT color="green">3069</FONT>            if (str.length() == 0) {<a name="line.3069"></a>
<FONT color="green">3070</FONT>                return ArrayUtils.EMPTY_STRING_ARRAY;<a name="line.3070"></a>
<FONT color="green">3071</FONT>            }<a name="line.3071"></a>
<FONT color="green">3072</FONT>            char[] c = str.toCharArray();<a name="line.3072"></a>
<FONT color="green">3073</FONT>            List list = new ArrayList();<a name="line.3073"></a>
<FONT color="green">3074</FONT>            int tokenStart = 0;<a name="line.3074"></a>
<FONT color="green">3075</FONT>            int currentType = Character.getType(c[tokenStart]);<a name="line.3075"></a>
<FONT color="green">3076</FONT>            for (int pos = tokenStart + 1; pos &lt; c.length; pos++) {<a name="line.3076"></a>
<FONT color="green">3077</FONT>                int type = Character.getType(c[pos]);<a name="line.3077"></a>
<FONT color="green">3078</FONT>                if (type == currentType) {<a name="line.3078"></a>
<FONT color="green">3079</FONT>                    continue;<a name="line.3079"></a>
<FONT color="green">3080</FONT>                }<a name="line.3080"></a>
<FONT color="green">3081</FONT>                if (camelCase &amp;&amp; type == Character.LOWERCASE_LETTER &amp;&amp; currentType == Character.UPPERCASE_LETTER) {<a name="line.3081"></a>
<FONT color="green">3082</FONT>                    int newTokenStart = pos - 1;<a name="line.3082"></a>
<FONT color="green">3083</FONT>                    if (newTokenStart != tokenStart) {<a name="line.3083"></a>
<FONT color="green">3084</FONT>                        list.add(new String(c, tokenStart, newTokenStart - tokenStart));<a name="line.3084"></a>
<FONT color="green">3085</FONT>                        tokenStart = newTokenStart;<a name="line.3085"></a>
<FONT color="green">3086</FONT>                    }<a name="line.3086"></a>
<FONT color="green">3087</FONT>                } else {<a name="line.3087"></a>
<FONT color="green">3088</FONT>                    list.add(new String(c, tokenStart, pos - tokenStart));<a name="line.3088"></a>
<FONT color="green">3089</FONT>                    tokenStart = pos;<a name="line.3089"></a>
<FONT color="green">3090</FONT>                }<a name="line.3090"></a>
<FONT color="green">3091</FONT>                currentType = type;<a name="line.3091"></a>
<FONT color="green">3092</FONT>            }<a name="line.3092"></a>
<FONT color="green">3093</FONT>            list.add(new String(c, tokenStart, c.length - tokenStart));<a name="line.3093"></a>
<FONT color="green">3094</FONT>            return (String[]) list.toArray(new String[list.size()]);<a name="line.3094"></a>
<FONT color="green">3095</FONT>        }<a name="line.3095"></a>
<FONT color="green">3096</FONT>    <a name="line.3096"></a>
<FONT color="green">3097</FONT>        // Joining<a name="line.3097"></a>
<FONT color="green">3098</FONT>        //-----------------------------------------------------------------------<a name="line.3098"></a>
<FONT color="green">3099</FONT>        /**<a name="line.3099"></a>
<FONT color="green">3100</FONT>         * &lt;p&gt;Joins the provided elements into a single String. &lt;/p&gt;<a name="line.3100"></a>
<FONT color="green">3101</FONT>         *<a name="line.3101"></a>
<FONT color="green">3102</FONT>         * &lt;p&gt;No separator is added to the joined String.<a name="line.3102"></a>
<FONT color="green">3103</FONT>         * Null objects or empty string elements are represented by<a name="line.3103"></a>
<FONT color="green">3104</FONT>         * empty strings.&lt;/p&gt;<a name="line.3104"></a>
<FONT color="green">3105</FONT>         *<a name="line.3105"></a>
<FONT color="green">3106</FONT>         * &lt;pre&gt;<a name="line.3106"></a>
<FONT color="green">3107</FONT>         * StringUtils.concatenate(null)            = null<a name="line.3107"></a>
<FONT color="green">3108</FONT>         * StringUtils.concatenate([])              = ""<a name="line.3108"></a>
<FONT color="green">3109</FONT>         * StringUtils.concatenate([null])          = ""<a name="line.3109"></a>
<FONT color="green">3110</FONT>         * StringUtils.concatenate(["a", "b", "c"]) = "abc"<a name="line.3110"></a>
<FONT color="green">3111</FONT>         * StringUtils.concatenate([null, "", "a"]) = "a"<a name="line.3111"></a>
<FONT color="green">3112</FONT>         * &lt;/pre&gt;<a name="line.3112"></a>
<FONT color="green">3113</FONT>         *<a name="line.3113"></a>
<FONT color="green">3114</FONT>         * @param array  the array of values to concatenate, may be null<a name="line.3114"></a>
<FONT color="green">3115</FONT>         * @return the concatenated String, &lt;code&gt;null&lt;/code&gt; if null array input<a name="line.3115"></a>
<FONT color="green">3116</FONT>         * @deprecated Use the better named {@link #join(Object[])} instead.<a name="line.3116"></a>
<FONT color="green">3117</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.3117"></a>
<FONT color="green">3118</FONT>         */<a name="line.3118"></a>
<FONT color="green">3119</FONT>        public static String concatenate(Object[] array) {<a name="line.3119"></a>
<FONT color="green">3120</FONT>            return join(array, null);<a name="line.3120"></a>
<FONT color="green">3121</FONT>        }<a name="line.3121"></a>
<FONT color="green">3122</FONT>    <a name="line.3122"></a>
<FONT color="green">3123</FONT>        /**<a name="line.3123"></a>
<FONT color="green">3124</FONT>         * &lt;p&gt;Joins the elements of the provided array into a single String<a name="line.3124"></a>
<FONT color="green">3125</FONT>         * containing the provided list of elements.&lt;/p&gt;<a name="line.3125"></a>
<FONT color="green">3126</FONT>         *<a name="line.3126"></a>
<FONT color="green">3127</FONT>         * &lt;p&gt;No separator is added to the joined String.<a name="line.3127"></a>
<FONT color="green">3128</FONT>         * Null objects or empty strings within the array are represented by<a name="line.3128"></a>
<FONT color="green">3129</FONT>         * empty strings.&lt;/p&gt;<a name="line.3129"></a>
<FONT color="green">3130</FONT>         *<a name="line.3130"></a>
<FONT color="green">3131</FONT>         * &lt;pre&gt;<a name="line.3131"></a>
<FONT color="green">3132</FONT>         * StringUtils.join(null)            = null<a name="line.3132"></a>
<FONT color="green">3133</FONT>         * StringUtils.join([])              = ""<a name="line.3133"></a>
<FONT color="green">3134</FONT>         * StringUtils.join([null])          = ""<a name="line.3134"></a>
<FONT color="green">3135</FONT>         * StringUtils.join(["a", "b", "c"]) = "abc"<a name="line.3135"></a>
<FONT color="green">3136</FONT>         * StringUtils.join([null, "", "a"]) = "a"<a name="line.3136"></a>
<FONT color="green">3137</FONT>         * &lt;/pre&gt;<a name="line.3137"></a>
<FONT color="green">3138</FONT>         *<a name="line.3138"></a>
<FONT color="green">3139</FONT>         * @param array  the array of values to join together, may be null<a name="line.3139"></a>
<FONT color="green">3140</FONT>         * @return the joined String, &lt;code&gt;null&lt;/code&gt; if null array input<a name="line.3140"></a>
<FONT color="green">3141</FONT>         * @since 2.0<a name="line.3141"></a>
<FONT color="green">3142</FONT>         */<a name="line.3142"></a>
<FONT color="green">3143</FONT>        public static String join(Object[] array) {<a name="line.3143"></a>
<FONT color="green">3144</FONT>            return join(array, null);<a name="line.3144"></a>
<FONT color="green">3145</FONT>        }<a name="line.3145"></a>
<FONT color="green">3146</FONT>    <a name="line.3146"></a>
<FONT color="green">3147</FONT>        /**<a name="line.3147"></a>
<FONT color="green">3148</FONT>         * &lt;p&gt;Joins the elements of the provided array into a single String<a name="line.3148"></a>
<FONT color="green">3149</FONT>         * containing the provided list of elements.&lt;/p&gt;<a name="line.3149"></a>
<FONT color="green">3150</FONT>         *<a name="line.3150"></a>
<FONT color="green">3151</FONT>         * &lt;p&gt;No delimiter is added before or after the list.<a name="line.3151"></a>
<FONT color="green">3152</FONT>         * Null objects or empty strings within the array are represented by<a name="line.3152"></a>
<FONT color="green">3153</FONT>         * empty strings.&lt;/p&gt;<a name="line.3153"></a>
<FONT color="green">3154</FONT>         *<a name="line.3154"></a>
<FONT color="green">3155</FONT>         * &lt;pre&gt;<a name="line.3155"></a>
<FONT color="green">3156</FONT>         * StringUtils.join(null, *)               = null<a name="line.3156"></a>
<FONT color="green">3157</FONT>         * StringUtils.join([], *)                 = ""<a name="line.3157"></a>
<FONT color="green">3158</FONT>         * StringUtils.join([null], *)             = ""<a name="line.3158"></a>
<FONT color="green">3159</FONT>         * StringUtils.join(["a", "b", "c"], ';')  = "a;b;c"<a name="line.3159"></a>
<FONT color="green">3160</FONT>         * StringUtils.join(["a", "b", "c"], null) = "abc"<a name="line.3160"></a>
<FONT color="green">3161</FONT>         * StringUtils.join([null, "", "a"], ';')  = ";;a"<a name="line.3161"></a>
<FONT color="green">3162</FONT>         * &lt;/pre&gt;<a name="line.3162"></a>
<FONT color="green">3163</FONT>         *<a name="line.3163"></a>
<FONT color="green">3164</FONT>         * @param array  the array of values to join together, may be null<a name="line.3164"></a>
<FONT color="green">3165</FONT>         * @param separator  the separator character to use<a name="line.3165"></a>
<FONT color="green">3166</FONT>         * @return the joined String, &lt;code&gt;null&lt;/code&gt; if null array input<a name="line.3166"></a>
<FONT color="green">3167</FONT>         * @since 2.0<a name="line.3167"></a>
<FONT color="green">3168</FONT>         */<a name="line.3168"></a>
<FONT color="green">3169</FONT>        public static String join(Object[] array, char separator) {<a name="line.3169"></a>
<FONT color="green">3170</FONT>            if (array == null) {<a name="line.3170"></a>
<FONT color="green">3171</FONT>                return null;<a name="line.3171"></a>
<FONT color="green">3172</FONT>            }<a name="line.3172"></a>
<FONT color="green">3173</FONT>    <a name="line.3173"></a>
<FONT color="green">3174</FONT>            return join(array, separator, 0, array.length);<a name="line.3174"></a>
<FONT color="green">3175</FONT>        }<a name="line.3175"></a>
<FONT color="green">3176</FONT>    <a name="line.3176"></a>
<FONT color="green">3177</FONT>        /**<a name="line.3177"></a>
<FONT color="green">3178</FONT>         * &lt;p&gt;Joins the elements of the provided array into a single String<a name="line.3178"></a>
<FONT color="green">3179</FONT>         * containing the provided list of elements.&lt;/p&gt;<a name="line.3179"></a>
<FONT color="green">3180</FONT>         *<a name="line.3180"></a>
<FONT color="green">3181</FONT>         * &lt;p&gt;No delimiter is added before or after the list.<a name="line.3181"></a>
<FONT color="green">3182</FONT>         * Null objects or empty strings within the array are represented by<a name="line.3182"></a>
<FONT color="green">3183</FONT>         * empty strings.&lt;/p&gt;<a name="line.3183"></a>
<FONT color="green">3184</FONT>         *<a name="line.3184"></a>
<FONT color="green">3185</FONT>         * &lt;pre&gt;<a name="line.3185"></a>
<FONT color="green">3186</FONT>         * StringUtils.join(null, *)               = null<a name="line.3186"></a>
<FONT color="green">3187</FONT>         * StringUtils.join([], *)                 = ""<a name="line.3187"></a>
<FONT color="green">3188</FONT>         * StringUtils.join([null], *)             = ""<a name="line.3188"></a>
<FONT color="green">3189</FONT>         * StringUtils.join(["a", "b", "c"], ';')  = "a;b;c"<a name="line.3189"></a>
<FONT color="green">3190</FONT>         * StringUtils.join(["a", "b", "c"], null) = "abc"<a name="line.3190"></a>
<FONT color="green">3191</FONT>         * StringUtils.join([null, "", "a"], ';')  = ";;a"<a name="line.3191"></a>
<FONT color="green">3192</FONT>         * &lt;/pre&gt;<a name="line.3192"></a>
<FONT color="green">3193</FONT>         *<a name="line.3193"></a>
<FONT color="green">3194</FONT>         * @param array  the array of values to join together, may be null<a name="line.3194"></a>
<FONT color="green">3195</FONT>         * @param separator  the separator character to use<a name="line.3195"></a>
<FONT color="green">3196</FONT>         * @param startIndex the first index to start joining from.  It is<a name="line.3196"></a>
<FONT color="green">3197</FONT>         * an error to pass in an end index past the end of the array<a name="line.3197"></a>
<FONT color="green">3198</FONT>         * @param endIndex the index to stop joining from (exclusive). It is<a name="line.3198"></a>
<FONT color="green">3199</FONT>         * an error to pass in an end index past the end of the array<a name="line.3199"></a>
<FONT color="green">3200</FONT>         * @return the joined String, &lt;code&gt;null&lt;/code&gt; if null array input<a name="line.3200"></a>
<FONT color="green">3201</FONT>         * @since 2.0<a name="line.3201"></a>
<FONT color="green">3202</FONT>         */<a name="line.3202"></a>
<FONT color="green">3203</FONT>        public static String join(Object[] array, char separator, int startIndex, int endIndex) {<a name="line.3203"></a>
<FONT color="green">3204</FONT>            if (array == null) {<a name="line.3204"></a>
<FONT color="green">3205</FONT>                return null;<a name="line.3205"></a>
<FONT color="green">3206</FONT>            }<a name="line.3206"></a>
<FONT color="green">3207</FONT>            int bufSize = (endIndex - startIndex);<a name="line.3207"></a>
<FONT color="green">3208</FONT>            if (bufSize &lt;= 0) {<a name="line.3208"></a>
<FONT color="green">3209</FONT>                return EMPTY;<a name="line.3209"></a>
<FONT color="green">3210</FONT>            }<a name="line.3210"></a>
<FONT color="green">3211</FONT>    <a name="line.3211"></a>
<FONT color="green">3212</FONT>            bufSize *= ((array[startIndex] == null ? 16 : array[startIndex].toString().length()) + 1);<a name="line.3212"></a>
<FONT color="green">3213</FONT>            StrBuilder buf = new StrBuilder(bufSize);<a name="line.3213"></a>
<FONT color="green">3214</FONT>    <a name="line.3214"></a>
<FONT color="green">3215</FONT>            for (int i = startIndex; i &lt; endIndex; i++) {<a name="line.3215"></a>
<FONT color="green">3216</FONT>                if (i &gt; startIndex) {<a name="line.3216"></a>
<FONT color="green">3217</FONT>                    buf.append(separator);<a name="line.3217"></a>
<FONT color="green">3218</FONT>                }<a name="line.3218"></a>
<FONT color="green">3219</FONT>                if (array[i] != null) {<a name="line.3219"></a>
<FONT color="green">3220</FONT>                    buf.append(array[i]);<a name="line.3220"></a>
<FONT color="green">3221</FONT>                }<a name="line.3221"></a>
<FONT color="green">3222</FONT>            }<a name="line.3222"></a>
<FONT color="green">3223</FONT>            return buf.toString();<a name="line.3223"></a>
<FONT color="green">3224</FONT>        }<a name="line.3224"></a>
<FONT color="green">3225</FONT>    <a name="line.3225"></a>
<FONT color="green">3226</FONT>    <a name="line.3226"></a>
<FONT color="green">3227</FONT>        /**<a name="line.3227"></a>
<FONT color="green">3228</FONT>         * &lt;p&gt;Joins the elements of the provided array into a single String<a name="line.3228"></a>
<FONT color="green">3229</FONT>         * containing the provided list of elements.&lt;/p&gt;<a name="line.3229"></a>
<FONT color="green">3230</FONT>         *<a name="line.3230"></a>
<FONT color="green">3231</FONT>         * &lt;p&gt;No delimiter is added before or after the list.<a name="line.3231"></a>
<FONT color="green">3232</FONT>         * A &lt;code&gt;null&lt;/code&gt; separator is the same as an empty String ("").<a name="line.3232"></a>
<FONT color="green">3233</FONT>         * Null objects or empty strings within the array are represented by<a name="line.3233"></a>
<FONT color="green">3234</FONT>         * empty strings.&lt;/p&gt;<a name="line.3234"></a>
<FONT color="green">3235</FONT>         *<a name="line.3235"></a>
<FONT color="green">3236</FONT>         * &lt;pre&gt;<a name="line.3236"></a>
<FONT color="green">3237</FONT>         * StringUtils.join(null, *)                = null<a name="line.3237"></a>
<FONT color="green">3238</FONT>         * StringUtils.join([], *)                  = ""<a name="line.3238"></a>
<FONT color="green">3239</FONT>         * StringUtils.join([null], *)              = ""<a name="line.3239"></a>
<FONT color="green">3240</FONT>         * StringUtils.join(["a", "b", "c"], "--")  = "a--b--c"<a name="line.3240"></a>
<FONT color="green">3241</FONT>         * StringUtils.join(["a", "b", "c"], null)  = "abc"<a name="line.3241"></a>
<FONT color="green">3242</FONT>         * StringUtils.join(["a", "b", "c"], "")    = "abc"<a name="line.3242"></a>
<FONT color="green">3243</FONT>         * StringUtils.join([null, "", "a"], ',')   = ",,a"<a name="line.3243"></a>
<FONT color="green">3244</FONT>         * &lt;/pre&gt;<a name="line.3244"></a>
<FONT color="green">3245</FONT>         *<a name="line.3245"></a>
<FONT color="green">3246</FONT>         * @param array  the array of values to join together, may be null<a name="line.3246"></a>
<FONT color="green">3247</FONT>         * @param separator  the separator character to use, null treated as ""<a name="line.3247"></a>
<FONT color="green">3248</FONT>         * @return the joined String, &lt;code&gt;null&lt;/code&gt; if null array input<a name="line.3248"></a>
<FONT color="green">3249</FONT>         */<a name="line.3249"></a>
<FONT color="green">3250</FONT>        public static String join(Object[] array, String separator) {<a name="line.3250"></a>
<FONT color="green">3251</FONT>            if (array == null) {<a name="line.3251"></a>
<FONT color="green">3252</FONT>                return null;<a name="line.3252"></a>
<FONT color="green">3253</FONT>            }<a name="line.3253"></a>
<FONT color="green">3254</FONT>            return join(array, separator, 0, array.length);<a name="line.3254"></a>
<FONT color="green">3255</FONT>        }<a name="line.3255"></a>
<FONT color="green">3256</FONT>    <a name="line.3256"></a>
<FONT color="green">3257</FONT>        /**<a name="line.3257"></a>
<FONT color="green">3258</FONT>         * &lt;p&gt;Joins the elements of the provided array into a single String<a name="line.3258"></a>
<FONT color="green">3259</FONT>         * containing the provided list of elements.&lt;/p&gt;<a name="line.3259"></a>
<FONT color="green">3260</FONT>         *<a name="line.3260"></a>
<FONT color="green">3261</FONT>         * &lt;p&gt;No delimiter is added before or after the list.<a name="line.3261"></a>
<FONT color="green">3262</FONT>         * A &lt;code&gt;null&lt;/code&gt; separator is the same as an empty String ("").<a name="line.3262"></a>
<FONT color="green">3263</FONT>         * Null objects or empty strings within the array are represented by<a name="line.3263"></a>
<FONT color="green">3264</FONT>         * empty strings.&lt;/p&gt;<a name="line.3264"></a>
<FONT color="green">3265</FONT>         *<a name="line.3265"></a>
<FONT color="green">3266</FONT>         * &lt;pre&gt;<a name="line.3266"></a>
<FONT color="green">3267</FONT>         * StringUtils.join(null, *)                = null<a name="line.3267"></a>
<FONT color="green">3268</FONT>         * StringUtils.join([], *)                  = ""<a name="line.3268"></a>
<FONT color="green">3269</FONT>         * StringUtils.join([null], *)              = ""<a name="line.3269"></a>
<FONT color="green">3270</FONT>         * StringUtils.join(["a", "b", "c"], "--")  = "a--b--c"<a name="line.3270"></a>
<FONT color="green">3271</FONT>         * StringUtils.join(["a", "b", "c"], null)  = "abc"<a name="line.3271"></a>
<FONT color="green">3272</FONT>         * StringUtils.join(["a", "b", "c"], "")    = "abc"<a name="line.3272"></a>
<FONT color="green">3273</FONT>         * StringUtils.join([null, "", "a"], ',')   = ",,a"<a name="line.3273"></a>
<FONT color="green">3274</FONT>         * &lt;/pre&gt;<a name="line.3274"></a>
<FONT color="green">3275</FONT>         *<a name="line.3275"></a>
<FONT color="green">3276</FONT>         * @param array  the array of values to join together, may be null<a name="line.3276"></a>
<FONT color="green">3277</FONT>         * @param separator  the separator character to use, null treated as ""<a name="line.3277"></a>
<FONT color="green">3278</FONT>         * @param startIndex the first index to start joining from.  It is<a name="line.3278"></a>
<FONT color="green">3279</FONT>         * an error to pass in an end index past the end of the array<a name="line.3279"></a>
<FONT color="green">3280</FONT>         * @param endIndex the index to stop joining from (exclusive). It is<a name="line.3280"></a>
<FONT color="green">3281</FONT>         * an error to pass in an end index past the end of the array<a name="line.3281"></a>
<FONT color="green">3282</FONT>         * @return the joined String, &lt;code&gt;null&lt;/code&gt; if null array input<a name="line.3282"></a>
<FONT color="green">3283</FONT>         */<a name="line.3283"></a>
<FONT color="green">3284</FONT>        public static String join(Object[] array, String separator, int startIndex, int endIndex) {<a name="line.3284"></a>
<FONT color="green">3285</FONT>            if (array == null) {<a name="line.3285"></a>
<FONT color="green">3286</FONT>                return null;<a name="line.3286"></a>
<FONT color="green">3287</FONT>            }<a name="line.3287"></a>
<FONT color="green">3288</FONT>            if (separator == null) {<a name="line.3288"></a>
<FONT color="green">3289</FONT>                separator = EMPTY;<a name="line.3289"></a>
<FONT color="green">3290</FONT>            }<a name="line.3290"></a>
<FONT color="green">3291</FONT>    <a name="line.3291"></a>
<FONT color="green">3292</FONT>            // endIndex - startIndex &gt; 0:   Len = NofStrings *(len(firstString) + len(separator))<a name="line.3292"></a>
<FONT color="green">3293</FONT>            //           (Assuming that all Strings are roughly equally long)<a name="line.3293"></a>
<FONT color="green">3294</FONT>            int bufSize = (endIndex - startIndex);<a name="line.3294"></a>
<FONT color="green">3295</FONT>            if (bufSize &lt;= 0) {<a name="line.3295"></a>
<FONT color="green">3296</FONT>                return EMPTY;<a name="line.3296"></a>
<FONT color="green">3297</FONT>            }<a name="line.3297"></a>
<FONT color="green">3298</FONT>    <a name="line.3298"></a>
<FONT color="green">3299</FONT>            bufSize *= ((array[startIndex] == null ? 16 : array[startIndex].toString().length())<a name="line.3299"></a>
<FONT color="green">3300</FONT>                            + separator.length());<a name="line.3300"></a>
<FONT color="green">3301</FONT>    <a name="line.3301"></a>
<FONT color="green">3302</FONT>            StrBuilder buf = new StrBuilder(bufSize);<a name="line.3302"></a>
<FONT color="green">3303</FONT>    <a name="line.3303"></a>
<FONT color="green">3304</FONT>            for (int i = startIndex; i &lt; endIndex; i++) {<a name="line.3304"></a>
<FONT color="green">3305</FONT>                if (i &gt; startIndex) {<a name="line.3305"></a>
<FONT color="green">3306</FONT>                    buf.append(separator);<a name="line.3306"></a>
<FONT color="green">3307</FONT>                }<a name="line.3307"></a>
<FONT color="green">3308</FONT>                if (array[i] != null) {<a name="line.3308"></a>
<FONT color="green">3309</FONT>                    buf.append(array[i]);<a name="line.3309"></a>
<FONT color="green">3310</FONT>                }<a name="line.3310"></a>
<FONT color="green">3311</FONT>            }<a name="line.3311"></a>
<FONT color="green">3312</FONT>            return buf.toString();<a name="line.3312"></a>
<FONT color="green">3313</FONT>        }<a name="line.3313"></a>
<FONT color="green">3314</FONT>    <a name="line.3314"></a>
<FONT color="green">3315</FONT>        /**<a name="line.3315"></a>
<FONT color="green">3316</FONT>         * &lt;p&gt;Joins the elements of the provided &lt;code&gt;Iterator&lt;/code&gt; into<a name="line.3316"></a>
<FONT color="green">3317</FONT>         * a single String containing the provided elements.&lt;/p&gt;<a name="line.3317"></a>
<FONT color="green">3318</FONT>         *<a name="line.3318"></a>
<FONT color="green">3319</FONT>         * &lt;p&gt;No delimiter is added before or after the list. Null objects or empty<a name="line.3319"></a>
<FONT color="green">3320</FONT>         * strings within the iteration are represented by empty strings.&lt;/p&gt;<a name="line.3320"></a>
<FONT color="green">3321</FONT>         *<a name="line.3321"></a>
<FONT color="green">3322</FONT>         * &lt;p&gt;See the examples here: {@link #join(Object[],char)}. &lt;/p&gt;<a name="line.3322"></a>
<FONT color="green">3323</FONT>         *<a name="line.3323"></a>
<FONT color="green">3324</FONT>         * @param iterator  the &lt;code&gt;Iterator&lt;/code&gt; of values to join together, may be null<a name="line.3324"></a>
<FONT color="green">3325</FONT>         * @param separator  the separator character to use<a name="line.3325"></a>
<FONT color="green">3326</FONT>         * @return the joined String, &lt;code&gt;null&lt;/code&gt; if null iterator input<a name="line.3326"></a>
<FONT color="green">3327</FONT>         * @since 2.0<a name="line.3327"></a>
<FONT color="green">3328</FONT>         */<a name="line.3328"></a>
<FONT color="green">3329</FONT>        public static String join(Iterator iterator, char separator) {<a name="line.3329"></a>
<FONT color="green">3330</FONT>    <a name="line.3330"></a>
<FONT color="green">3331</FONT>            // handle null, zero and one elements before building a buffer<a name="line.3331"></a>
<FONT color="green">3332</FONT>            if (iterator == null) {<a name="line.3332"></a>
<FONT color="green">3333</FONT>                return null;<a name="line.3333"></a>
<FONT color="green">3334</FONT>            }<a name="line.3334"></a>
<FONT color="green">3335</FONT>            if (!iterator.hasNext()) {<a name="line.3335"></a>
<FONT color="green">3336</FONT>                return EMPTY;<a name="line.3336"></a>
<FONT color="green">3337</FONT>            }<a name="line.3337"></a>
<FONT color="green">3338</FONT>            Object first = iterator.next();<a name="line.3338"></a>
<FONT color="green">3339</FONT>            if (!iterator.hasNext()) {<a name="line.3339"></a>
<FONT color="green">3340</FONT>                return ObjectUtils.toString(first);<a name="line.3340"></a>
<FONT color="green">3341</FONT>            }<a name="line.3341"></a>
<FONT color="green">3342</FONT>    <a name="line.3342"></a>
<FONT color="green">3343</FONT>            // two or more elements<a name="line.3343"></a>
<FONT color="green">3344</FONT>            StrBuilder buf = new StrBuilder(256); // Java default is 16, probably too small<a name="line.3344"></a>
<FONT color="green">3345</FONT>            if (first != null) {<a name="line.3345"></a>
<FONT color="green">3346</FONT>                buf.append(first);<a name="line.3346"></a>
<FONT color="green">3347</FONT>            }<a name="line.3347"></a>
<FONT color="green">3348</FONT>    <a name="line.3348"></a>
<FONT color="green">3349</FONT>            while (iterator.hasNext()) {<a name="line.3349"></a>
<FONT color="green">3350</FONT>                buf.append(separator);<a name="line.3350"></a>
<FONT color="green">3351</FONT>                Object obj = iterator.next();<a name="line.3351"></a>
<FONT color="green">3352</FONT>                if (obj != null) {<a name="line.3352"></a>
<FONT color="green">3353</FONT>                    buf.append(obj);<a name="line.3353"></a>
<FONT color="green">3354</FONT>                }<a name="line.3354"></a>
<FONT color="green">3355</FONT>            }<a name="line.3355"></a>
<FONT color="green">3356</FONT>    <a name="line.3356"></a>
<FONT color="green">3357</FONT>            return buf.toString();<a name="line.3357"></a>
<FONT color="green">3358</FONT>        }<a name="line.3358"></a>
<FONT color="green">3359</FONT>    <a name="line.3359"></a>
<FONT color="green">3360</FONT>        /**<a name="line.3360"></a>
<FONT color="green">3361</FONT>         * &lt;p&gt;Joins the elements of the provided &lt;code&gt;Iterator&lt;/code&gt; into<a name="line.3361"></a>
<FONT color="green">3362</FONT>         * a single String containing the provided elements.&lt;/p&gt;<a name="line.3362"></a>
<FONT color="green">3363</FONT>         *<a name="line.3363"></a>
<FONT color="green">3364</FONT>         * &lt;p&gt;No delimiter is added before or after the list.<a name="line.3364"></a>
<FONT color="green">3365</FONT>         * A &lt;code&gt;null&lt;/code&gt; separator is the same as an empty String ("").&lt;/p&gt;<a name="line.3365"></a>
<FONT color="green">3366</FONT>         *<a name="line.3366"></a>
<FONT color="green">3367</FONT>         * &lt;p&gt;See the examples here: {@link #join(Object[],String)}. &lt;/p&gt;<a name="line.3367"></a>
<FONT color="green">3368</FONT>         *<a name="line.3368"></a>
<FONT color="green">3369</FONT>         * @param iterator  the &lt;code&gt;Iterator&lt;/code&gt; of values to join together, may be null<a name="line.3369"></a>
<FONT color="green">3370</FONT>         * @param separator  the separator character to use, null treated as ""<a name="line.3370"></a>
<FONT color="green">3371</FONT>         * @return the joined String, &lt;code&gt;null&lt;/code&gt; if null iterator input<a name="line.3371"></a>
<FONT color="green">3372</FONT>         */<a name="line.3372"></a>
<FONT color="green">3373</FONT>        public static String join(Iterator iterator, String separator) {<a name="line.3373"></a>
<FONT color="green">3374</FONT>    <a name="line.3374"></a>
<FONT color="green">3375</FONT>            // handle null, zero and one elements before building a buffer<a name="line.3375"></a>
<FONT color="green">3376</FONT>            if (iterator == null) {<a name="line.3376"></a>
<FONT color="green">3377</FONT>                return null;<a name="line.3377"></a>
<FONT color="green">3378</FONT>            }<a name="line.3378"></a>
<FONT color="green">3379</FONT>            if (!iterator.hasNext()) {<a name="line.3379"></a>
<FONT color="green">3380</FONT>                return EMPTY;<a name="line.3380"></a>
<FONT color="green">3381</FONT>            }<a name="line.3381"></a>
<FONT color="green">3382</FONT>            Object first = iterator.next();<a name="line.3382"></a>
<FONT color="green">3383</FONT>            if (!iterator.hasNext()) {<a name="line.3383"></a>
<FONT color="green">3384</FONT>                return ObjectUtils.toString(first);<a name="line.3384"></a>
<FONT color="green">3385</FONT>            }<a name="line.3385"></a>
<FONT color="green">3386</FONT>    <a name="line.3386"></a>
<FONT color="green">3387</FONT>            // two or more elements<a name="line.3387"></a>
<FONT color="green">3388</FONT>            StrBuilder buf = new StrBuilder(256); // Java default is 16, probably too small<a name="line.3388"></a>
<FONT color="green">3389</FONT>            if (first != null) {<a name="line.3389"></a>
<FONT color="green">3390</FONT>                buf.append(first);<a name="line.3390"></a>
<FONT color="green">3391</FONT>            }<a name="line.3391"></a>
<FONT color="green">3392</FONT>    <a name="line.3392"></a>
<FONT color="green">3393</FONT>            while (iterator.hasNext()) {<a name="line.3393"></a>
<FONT color="green">3394</FONT>                if (separator != null) {<a name="line.3394"></a>
<FONT color="green">3395</FONT>                    buf.append(separator);<a name="line.3395"></a>
<FONT color="green">3396</FONT>                }<a name="line.3396"></a>
<FONT color="green">3397</FONT>                Object obj = iterator.next();<a name="line.3397"></a>
<FONT color="green">3398</FONT>                if (obj != null) {<a name="line.3398"></a>
<FONT color="green">3399</FONT>                    buf.append(obj);<a name="line.3399"></a>
<FONT color="green">3400</FONT>                }<a name="line.3400"></a>
<FONT color="green">3401</FONT>            }<a name="line.3401"></a>
<FONT color="green">3402</FONT>            return buf.toString();<a name="line.3402"></a>
<FONT color="green">3403</FONT>        }<a name="line.3403"></a>
<FONT color="green">3404</FONT>    <a name="line.3404"></a>
<FONT color="green">3405</FONT>        /**<a name="line.3405"></a>
<FONT color="green">3406</FONT>         * &lt;p&gt;Joins the elements of the provided &lt;code&gt;Collection&lt;/code&gt; into<a name="line.3406"></a>
<FONT color="green">3407</FONT>         * a single String containing the provided elements.&lt;/p&gt;<a name="line.3407"></a>
<FONT color="green">3408</FONT>         *<a name="line.3408"></a>
<FONT color="green">3409</FONT>         * &lt;p&gt;No delimiter is added before or after the list. Null objects or empty<a name="line.3409"></a>
<FONT color="green">3410</FONT>         * strings within the iteration are represented by empty strings.&lt;/p&gt;<a name="line.3410"></a>
<FONT color="green">3411</FONT>         *<a name="line.3411"></a>
<FONT color="green">3412</FONT>         * &lt;p&gt;See the examples here: {@link #join(Object[],char)}. &lt;/p&gt;<a name="line.3412"></a>
<FONT color="green">3413</FONT>         *<a name="line.3413"></a>
<FONT color="green">3414</FONT>         * @param collection  the &lt;code&gt;Collection&lt;/code&gt; of values to join together, may be null<a name="line.3414"></a>
<FONT color="green">3415</FONT>         * @param separator  the separator character to use<a name="line.3415"></a>
<FONT color="green">3416</FONT>         * @return the joined String, &lt;code&gt;null&lt;/code&gt; if null iterator input<a name="line.3416"></a>
<FONT color="green">3417</FONT>         * @since 2.3<a name="line.3417"></a>
<FONT color="green">3418</FONT>         */<a name="line.3418"></a>
<FONT color="green">3419</FONT>        public static String join(Collection collection, char separator) {<a name="line.3419"></a>
<FONT color="green">3420</FONT>            if (collection == null) {<a name="line.3420"></a>
<FONT color="green">3421</FONT>                return null;<a name="line.3421"></a>
<FONT color="green">3422</FONT>            }<a name="line.3422"></a>
<FONT color="green">3423</FONT>            return join(collection.iterator(), separator);<a name="line.3423"></a>
<FONT color="green">3424</FONT>        }<a name="line.3424"></a>
<FONT color="green">3425</FONT>    <a name="line.3425"></a>
<FONT color="green">3426</FONT>        /**<a name="line.3426"></a>
<FONT color="green">3427</FONT>         * &lt;p&gt;Joins the elements of the provided &lt;code&gt;Collection&lt;/code&gt; into<a name="line.3427"></a>
<FONT color="green">3428</FONT>         * a single String containing the provided elements.&lt;/p&gt;<a name="line.3428"></a>
<FONT color="green">3429</FONT>         *<a name="line.3429"></a>
<FONT color="green">3430</FONT>         * &lt;p&gt;No delimiter is added before or after the list.<a name="line.3430"></a>
<FONT color="green">3431</FONT>         * A &lt;code&gt;null&lt;/code&gt; separator is the same as an empty String ("").&lt;/p&gt;<a name="line.3431"></a>
<FONT color="green">3432</FONT>         *<a name="line.3432"></a>
<FONT color="green">3433</FONT>         * &lt;p&gt;See the examples here: {@link #join(Object[],String)}. &lt;/p&gt;<a name="line.3433"></a>
<FONT color="green">3434</FONT>         *<a name="line.3434"></a>
<FONT color="green">3435</FONT>         * @param collection  the &lt;code&gt;Collection&lt;/code&gt; of values to join together, may be null<a name="line.3435"></a>
<FONT color="green">3436</FONT>         * @param separator  the separator character to use, null treated as ""<a name="line.3436"></a>
<FONT color="green">3437</FONT>         * @return the joined String, &lt;code&gt;null&lt;/code&gt; if null iterator input<a name="line.3437"></a>
<FONT color="green">3438</FONT>         * @since 2.3<a name="line.3438"></a>
<FONT color="green">3439</FONT>         */<a name="line.3439"></a>
<FONT color="green">3440</FONT>        public static String join(Collection collection, String separator) {<a name="line.3440"></a>
<FONT color="green">3441</FONT>            if (collection == null) {<a name="line.3441"></a>
<FONT color="green">3442</FONT>                return null;<a name="line.3442"></a>
<FONT color="green">3443</FONT>            }<a name="line.3443"></a>
<FONT color="green">3444</FONT>            return join(collection.iterator(), separator);<a name="line.3444"></a>
<FONT color="green">3445</FONT>        }<a name="line.3445"></a>
<FONT color="green">3446</FONT>    <a name="line.3446"></a>
<FONT color="green">3447</FONT>        // Delete<a name="line.3447"></a>
<FONT color="green">3448</FONT>        //-----------------------------------------------------------------------<a name="line.3448"></a>
<FONT color="green">3449</FONT>        /**<a name="line.3449"></a>
<FONT color="green">3450</FONT>         * &lt;p&gt;Deletes all 'space' characters from a String as defined by<a name="line.3450"></a>
<FONT color="green">3451</FONT>         * {@link Character#isSpace(char)}.&lt;/p&gt;<a name="line.3451"></a>
<FONT color="green">3452</FONT>         *<a name="line.3452"></a>
<FONT color="green">3453</FONT>         * &lt;p&gt;This is the only StringUtils method that uses the<a name="line.3453"></a>
<FONT color="green">3454</FONT>         * &lt;code&gt;isSpace&lt;/code&gt; definition. You are advised to use<a name="line.3454"></a>
<FONT color="green">3455</FONT>         * {@link #deleteWhitespace(String)} instead as whitespace is much<a name="line.3455"></a>
<FONT color="green">3456</FONT>         * better localized.&lt;/p&gt;<a name="line.3456"></a>
<FONT color="green">3457</FONT>         *<a name="line.3457"></a>
<FONT color="green">3458</FONT>         * &lt;pre&gt;<a name="line.3458"></a>
<FONT color="green">3459</FONT>         * StringUtils.deleteSpaces(null)           = null<a name="line.3459"></a>
<FONT color="green">3460</FONT>         * StringUtils.deleteSpaces("")             = ""<a name="line.3460"></a>
<FONT color="green">3461</FONT>         * StringUtils.deleteSpaces("abc")          = "abc"<a name="line.3461"></a>
<FONT color="green">3462</FONT>         * StringUtils.deleteSpaces(" \t  abc \n ") = "abc"<a name="line.3462"></a>
<FONT color="green">3463</FONT>         * StringUtils.deleteSpaces("ab  c")        = "abc"<a name="line.3463"></a>
<FONT color="green">3464</FONT>         * StringUtils.deleteSpaces("a\nb\tc     ") = "abc"<a name="line.3464"></a>
<FONT color="green">3465</FONT>         * &lt;/pre&gt;<a name="line.3465"></a>
<FONT color="green">3466</FONT>         *<a name="line.3466"></a>
<FONT color="green">3467</FONT>         * &lt;p&gt;Spaces are defined as &lt;code&gt;{' ', '\t', '\r', '\n', '\b'}&lt;/code&gt;<a name="line.3467"></a>
<FONT color="green">3468</FONT>         * in line with the deprecated &lt;code&gt;isSpace&lt;/code&gt; method.&lt;/p&gt;<a name="line.3468"></a>
<FONT color="green">3469</FONT>         *<a name="line.3469"></a>
<FONT color="green">3470</FONT>         * @param str  the String to delete spaces from, may be null<a name="line.3470"></a>
<FONT color="green">3471</FONT>         * @return the String without 'spaces', &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3471"></a>
<FONT color="green">3472</FONT>         * @deprecated Use the better localized {@link #deleteWhitespace(String)}.<a name="line.3472"></a>
<FONT color="green">3473</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.3473"></a>
<FONT color="green">3474</FONT>         */<a name="line.3474"></a>
<FONT color="green">3475</FONT>        public static String deleteSpaces(String str) {<a name="line.3475"></a>
<FONT color="green">3476</FONT>            if (str == null) {<a name="line.3476"></a>
<FONT color="green">3477</FONT>                return null;<a name="line.3477"></a>
<FONT color="green">3478</FONT>            }<a name="line.3478"></a>
<FONT color="green">3479</FONT>            return CharSetUtils.delete(str, " \t\r\n\b");<a name="line.3479"></a>
<FONT color="green">3480</FONT>        }<a name="line.3480"></a>
<FONT color="green">3481</FONT>    <a name="line.3481"></a>
<FONT color="green">3482</FONT>        /**<a name="line.3482"></a>
<FONT color="green">3483</FONT>         * &lt;p&gt;Deletes all whitespaces from a String as defined by<a name="line.3483"></a>
<FONT color="green">3484</FONT>         * {@link Character#isWhitespace(char)}.&lt;/p&gt;<a name="line.3484"></a>
<FONT color="green">3485</FONT>         *<a name="line.3485"></a>
<FONT color="green">3486</FONT>         * &lt;pre&gt;<a name="line.3486"></a>
<FONT color="green">3487</FONT>         * StringUtils.deleteWhitespace(null)         = null<a name="line.3487"></a>
<FONT color="green">3488</FONT>         * StringUtils.deleteWhitespace("")           = ""<a name="line.3488"></a>
<FONT color="green">3489</FONT>         * StringUtils.deleteWhitespace("abc")        = "abc"<a name="line.3489"></a>
<FONT color="green">3490</FONT>         * StringUtils.deleteWhitespace("   ab  c  ") = "abc"<a name="line.3490"></a>
<FONT color="green">3491</FONT>         * &lt;/pre&gt;<a name="line.3491"></a>
<FONT color="green">3492</FONT>         *<a name="line.3492"></a>
<FONT color="green">3493</FONT>         * @param str  the String to delete whitespace from, may be null<a name="line.3493"></a>
<FONT color="green">3494</FONT>         * @return the String without whitespaces, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3494"></a>
<FONT color="green">3495</FONT>         */<a name="line.3495"></a>
<FONT color="green">3496</FONT>        public static String deleteWhitespace(String str) {<a name="line.3496"></a>
<FONT color="green">3497</FONT>            if (isEmpty(str)) {<a name="line.3497"></a>
<FONT color="green">3498</FONT>                return str;<a name="line.3498"></a>
<FONT color="green">3499</FONT>            }<a name="line.3499"></a>
<FONT color="green">3500</FONT>            int sz = str.length();<a name="line.3500"></a>
<FONT color="green">3501</FONT>            char[] chs = new char[sz];<a name="line.3501"></a>
<FONT color="green">3502</FONT>            int count = 0;<a name="line.3502"></a>
<FONT color="green">3503</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.3503"></a>
<FONT color="green">3504</FONT>                if (!Character.isWhitespace(str.charAt(i))) {<a name="line.3504"></a>
<FONT color="green">3505</FONT>                    chs[count++] = str.charAt(i);<a name="line.3505"></a>
<FONT color="green">3506</FONT>                }<a name="line.3506"></a>
<FONT color="green">3507</FONT>            }<a name="line.3507"></a>
<FONT color="green">3508</FONT>            if (count == sz) {<a name="line.3508"></a>
<FONT color="green">3509</FONT>                return str;<a name="line.3509"></a>
<FONT color="green">3510</FONT>            }<a name="line.3510"></a>
<FONT color="green">3511</FONT>            return new String(chs, 0, count);<a name="line.3511"></a>
<FONT color="green">3512</FONT>        }<a name="line.3512"></a>
<FONT color="green">3513</FONT>    <a name="line.3513"></a>
<FONT color="green">3514</FONT>        // Remove<a name="line.3514"></a>
<FONT color="green">3515</FONT>        //-----------------------------------------------------------------------<a name="line.3515"></a>
<FONT color="green">3516</FONT>        /**<a name="line.3516"></a>
<FONT color="green">3517</FONT>         * &lt;p&gt;Removes a substring only if it is at the begining of a source string,<a name="line.3517"></a>
<FONT color="green">3518</FONT>         * otherwise returns the source string.&lt;/p&gt;<a name="line.3518"></a>
<FONT color="green">3519</FONT>         *<a name="line.3519"></a>
<FONT color="green">3520</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; source string will return &lt;code&gt;null&lt;/code&gt;.<a name="line.3520"></a>
<FONT color="green">3521</FONT>         * An empty ("") source string will return the empty string.<a name="line.3521"></a>
<FONT color="green">3522</FONT>         * A &lt;code&gt;null&lt;/code&gt; search string will return the source string.&lt;/p&gt;<a name="line.3522"></a>
<FONT color="green">3523</FONT>         *<a name="line.3523"></a>
<FONT color="green">3524</FONT>         * &lt;pre&gt;<a name="line.3524"></a>
<FONT color="green">3525</FONT>         * StringUtils.removeStart(null, *)      = null<a name="line.3525"></a>
<FONT color="green">3526</FONT>         * StringUtils.removeStart("", *)        = ""<a name="line.3526"></a>
<FONT color="green">3527</FONT>         * StringUtils.removeStart(*, null)      = *<a name="line.3527"></a>
<FONT color="green">3528</FONT>         * StringUtils.removeStart("www.domain.com", "www.")   = "domain.com"<a name="line.3528"></a>
<FONT color="green">3529</FONT>         * StringUtils.removeStart("domain.com", "www.")       = "domain.com"<a name="line.3529"></a>
<FONT color="green">3530</FONT>         * StringUtils.removeStart("www.domain.com", "domain") = "www.domain.com"<a name="line.3530"></a>
<FONT color="green">3531</FONT>         * StringUtils.removeStart("abc", "")    = "abc"<a name="line.3531"></a>
<FONT color="green">3532</FONT>         * &lt;/pre&gt;<a name="line.3532"></a>
<FONT color="green">3533</FONT>         *<a name="line.3533"></a>
<FONT color="green">3534</FONT>         * @param str  the source String to search, may be null<a name="line.3534"></a>
<FONT color="green">3535</FONT>         * @param remove  the String to search for and remove, may be null<a name="line.3535"></a>
<FONT color="green">3536</FONT>         * @return the substring with the string removed if found,<a name="line.3536"></a>
<FONT color="green">3537</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3537"></a>
<FONT color="green">3538</FONT>         * @since 2.1<a name="line.3538"></a>
<FONT color="green">3539</FONT>         */<a name="line.3539"></a>
<FONT color="green">3540</FONT>        public static String removeStart(String str, String remove) {<a name="line.3540"></a>
<FONT color="green">3541</FONT>            if (isEmpty(str) || isEmpty(remove)) {<a name="line.3541"></a>
<FONT color="green">3542</FONT>                return str;<a name="line.3542"></a>
<FONT color="green">3543</FONT>            }<a name="line.3543"></a>
<FONT color="green">3544</FONT>            if (str.startsWith(remove)){<a name="line.3544"></a>
<FONT color="green">3545</FONT>                return str.substring(remove.length());<a name="line.3545"></a>
<FONT color="green">3546</FONT>            }<a name="line.3546"></a>
<FONT color="green">3547</FONT>            return str;<a name="line.3547"></a>
<FONT color="green">3548</FONT>        }<a name="line.3548"></a>
<FONT color="green">3549</FONT>    <a name="line.3549"></a>
<FONT color="green">3550</FONT>        /**<a name="line.3550"></a>
<FONT color="green">3551</FONT>         * &lt;p&gt;Case insensitive removal of a substring if it is at the begining of a source string,<a name="line.3551"></a>
<FONT color="green">3552</FONT>         * otherwise returns the source string.&lt;/p&gt;<a name="line.3552"></a>
<FONT color="green">3553</FONT>         *<a name="line.3553"></a>
<FONT color="green">3554</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; source string will return &lt;code&gt;null&lt;/code&gt;.<a name="line.3554"></a>
<FONT color="green">3555</FONT>         * An empty ("") source string will return the empty string.<a name="line.3555"></a>
<FONT color="green">3556</FONT>         * A &lt;code&gt;null&lt;/code&gt; search string will return the source string.&lt;/p&gt;<a name="line.3556"></a>
<FONT color="green">3557</FONT>         *<a name="line.3557"></a>
<FONT color="green">3558</FONT>         * &lt;pre&gt;<a name="line.3558"></a>
<FONT color="green">3559</FONT>         * StringUtils.removeStartIgnoreCase(null, *)      = null<a name="line.3559"></a>
<FONT color="green">3560</FONT>         * StringUtils.removeStartIgnoreCase("", *)        = ""<a name="line.3560"></a>
<FONT color="green">3561</FONT>         * StringUtils.removeStartIgnoreCase(*, null)      = *<a name="line.3561"></a>
<FONT color="green">3562</FONT>         * StringUtils.removeStartIgnoreCase("www.domain.com", "www.")   = "domain.com"<a name="line.3562"></a>
<FONT color="green">3563</FONT>         * StringUtils.removeStartIgnoreCase("www.domain.com", "WWW.")   = "domain.com"<a name="line.3563"></a>
<FONT color="green">3564</FONT>         * StringUtils.removeStartIgnoreCase("domain.com", "www.")       = "domain.com"<a name="line.3564"></a>
<FONT color="green">3565</FONT>         * StringUtils.removeStartIgnoreCase("www.domain.com", "domain") = "www.domain.com"<a name="line.3565"></a>
<FONT color="green">3566</FONT>         * StringUtils.removeStartIgnoreCase("abc", "")    = "abc"<a name="line.3566"></a>
<FONT color="green">3567</FONT>         * &lt;/pre&gt;<a name="line.3567"></a>
<FONT color="green">3568</FONT>         *<a name="line.3568"></a>
<FONT color="green">3569</FONT>         * @param str  the source String to search, may be null<a name="line.3569"></a>
<FONT color="green">3570</FONT>         * @param remove  the String to search for (case insensitive) and remove, may be null<a name="line.3570"></a>
<FONT color="green">3571</FONT>         * @return the substring with the string removed if found,<a name="line.3571"></a>
<FONT color="green">3572</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3572"></a>
<FONT color="green">3573</FONT>         * @since 2.4<a name="line.3573"></a>
<FONT color="green">3574</FONT>         */<a name="line.3574"></a>
<FONT color="green">3575</FONT>        public static String removeStartIgnoreCase(String str, String remove) {<a name="line.3575"></a>
<FONT color="green">3576</FONT>            if (isEmpty(str) || isEmpty(remove)) {<a name="line.3576"></a>
<FONT color="green">3577</FONT>                return str;<a name="line.3577"></a>
<FONT color="green">3578</FONT>            }<a name="line.3578"></a>
<FONT color="green">3579</FONT>            if (startsWithIgnoreCase(str, remove)) {<a name="line.3579"></a>
<FONT color="green">3580</FONT>                return str.substring(remove.length());<a name="line.3580"></a>
<FONT color="green">3581</FONT>            }<a name="line.3581"></a>
<FONT color="green">3582</FONT>            return str;<a name="line.3582"></a>
<FONT color="green">3583</FONT>        }<a name="line.3583"></a>
<FONT color="green">3584</FONT>    <a name="line.3584"></a>
<FONT color="green">3585</FONT>        /**<a name="line.3585"></a>
<FONT color="green">3586</FONT>         * &lt;p&gt;Removes a substring only if it is at the end of a source string,<a name="line.3586"></a>
<FONT color="green">3587</FONT>         * otherwise returns the source string.&lt;/p&gt;<a name="line.3587"></a>
<FONT color="green">3588</FONT>         *<a name="line.3588"></a>
<FONT color="green">3589</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; source string will return &lt;code&gt;null&lt;/code&gt;.<a name="line.3589"></a>
<FONT color="green">3590</FONT>         * An empty ("") source string will return the empty string.<a name="line.3590"></a>
<FONT color="green">3591</FONT>         * A &lt;code&gt;null&lt;/code&gt; search string will return the source string.&lt;/p&gt;<a name="line.3591"></a>
<FONT color="green">3592</FONT>         *<a name="line.3592"></a>
<FONT color="green">3593</FONT>         * &lt;pre&gt;<a name="line.3593"></a>
<FONT color="green">3594</FONT>         * StringUtils.removeEnd(null, *)      = null<a name="line.3594"></a>
<FONT color="green">3595</FONT>         * StringUtils.removeEnd("", *)        = ""<a name="line.3595"></a>
<FONT color="green">3596</FONT>         * StringUtils.removeEnd(*, null)      = *<a name="line.3596"></a>
<FONT color="green">3597</FONT>         * StringUtils.removeEnd("www.domain.com", ".com.")  = "www.domain.com"<a name="line.3597"></a>
<FONT color="green">3598</FONT>         * StringUtils.removeEnd("www.domain.com", ".com")   = "www.domain"<a name="line.3598"></a>
<FONT color="green">3599</FONT>         * StringUtils.removeEnd("www.domain.com", "domain") = "www.domain.com"<a name="line.3599"></a>
<FONT color="green">3600</FONT>         * StringUtils.removeEnd("abc", "")    = "abc"<a name="line.3600"></a>
<FONT color="green">3601</FONT>         * &lt;/pre&gt;<a name="line.3601"></a>
<FONT color="green">3602</FONT>         *<a name="line.3602"></a>
<FONT color="green">3603</FONT>         * @param str  the source String to search, may be null<a name="line.3603"></a>
<FONT color="green">3604</FONT>         * @param remove  the String to search for and remove, may be null<a name="line.3604"></a>
<FONT color="green">3605</FONT>         * @return the substring with the string removed if found,<a name="line.3605"></a>
<FONT color="green">3606</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3606"></a>
<FONT color="green">3607</FONT>         * @since 2.1<a name="line.3607"></a>
<FONT color="green">3608</FONT>         */<a name="line.3608"></a>
<FONT color="green">3609</FONT>        public static String removeEnd(String str, String remove) {<a name="line.3609"></a>
<FONT color="green">3610</FONT>            if (isEmpty(str) || isEmpty(remove)) {<a name="line.3610"></a>
<FONT color="green">3611</FONT>                return str;<a name="line.3611"></a>
<FONT color="green">3612</FONT>            }<a name="line.3612"></a>
<FONT color="green">3613</FONT>            if (str.endsWith(remove)) {<a name="line.3613"></a>
<FONT color="green">3614</FONT>                return str.substring(0, str.length() - remove.length());<a name="line.3614"></a>
<FONT color="green">3615</FONT>            }<a name="line.3615"></a>
<FONT color="green">3616</FONT>            return str;<a name="line.3616"></a>
<FONT color="green">3617</FONT>        }<a name="line.3617"></a>
<FONT color="green">3618</FONT>    <a name="line.3618"></a>
<FONT color="green">3619</FONT>        /**<a name="line.3619"></a>
<FONT color="green">3620</FONT>         * &lt;p&gt;Case insensitive removal of a substring if it is at the end of a source string,<a name="line.3620"></a>
<FONT color="green">3621</FONT>         * otherwise returns the source string.&lt;/p&gt;<a name="line.3621"></a>
<FONT color="green">3622</FONT>         *<a name="line.3622"></a>
<FONT color="green">3623</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; source string will return &lt;code&gt;null&lt;/code&gt;.<a name="line.3623"></a>
<FONT color="green">3624</FONT>         * An empty ("") source string will return the empty string.<a name="line.3624"></a>
<FONT color="green">3625</FONT>         * A &lt;code&gt;null&lt;/code&gt; search string will return the source string.&lt;/p&gt;<a name="line.3625"></a>
<FONT color="green">3626</FONT>         *<a name="line.3626"></a>
<FONT color="green">3627</FONT>         * &lt;pre&gt;<a name="line.3627"></a>
<FONT color="green">3628</FONT>         * StringUtils.removeEndIgnoreCase(null, *)      = null<a name="line.3628"></a>
<FONT color="green">3629</FONT>         * StringUtils.removeEndIgnoreCase("", *)        = ""<a name="line.3629"></a>
<FONT color="green">3630</FONT>         * StringUtils.removeEndIgnoreCase(*, null)      = *<a name="line.3630"></a>
<FONT color="green">3631</FONT>         * StringUtils.removeEndIgnoreCase("www.domain.com", ".com.")  = "www.domain.com"<a name="line.3631"></a>
<FONT color="green">3632</FONT>         * StringUtils.removeEndIgnoreCase("www.domain.com", ".com")   = "www.domain"<a name="line.3632"></a>
<FONT color="green">3633</FONT>         * StringUtils.removeEndIgnoreCase("www.domain.com", "domain") = "www.domain.com"<a name="line.3633"></a>
<FONT color="green">3634</FONT>         * StringUtils.removeEndIgnoreCase("abc", "")    = "abc"<a name="line.3634"></a>
<FONT color="green">3635</FONT>         * StringUtils.removeEndIgnoreCase("www.domain.com", ".COM") = "www.domain")<a name="line.3635"></a>
<FONT color="green">3636</FONT>         * StringUtils.removeEndIgnoreCase("www.domain.COM", ".com") = "www.domain")<a name="line.3636"></a>
<FONT color="green">3637</FONT>         * &lt;/pre&gt;<a name="line.3637"></a>
<FONT color="green">3638</FONT>         *<a name="line.3638"></a>
<FONT color="green">3639</FONT>         * @param str  the source String to search, may be null<a name="line.3639"></a>
<FONT color="green">3640</FONT>         * @param remove  the String to search for (case insensitive) and remove, may be null<a name="line.3640"></a>
<FONT color="green">3641</FONT>         * @return the substring with the string removed if found,<a name="line.3641"></a>
<FONT color="green">3642</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3642"></a>
<FONT color="green">3643</FONT>         * @since 2.4<a name="line.3643"></a>
<FONT color="green">3644</FONT>         */<a name="line.3644"></a>
<FONT color="green">3645</FONT>        public static String removeEndIgnoreCase(String str, String remove) {<a name="line.3645"></a>
<FONT color="green">3646</FONT>            if (isEmpty(str) || isEmpty(remove)) {<a name="line.3646"></a>
<FONT color="green">3647</FONT>                return str;<a name="line.3647"></a>
<FONT color="green">3648</FONT>            }<a name="line.3648"></a>
<FONT color="green">3649</FONT>            if (endsWithIgnoreCase(str, remove)) {<a name="line.3649"></a>
<FONT color="green">3650</FONT>                return str.substring(0, str.length() - remove.length());<a name="line.3650"></a>
<FONT color="green">3651</FONT>            }<a name="line.3651"></a>
<FONT color="green">3652</FONT>            return str;<a name="line.3652"></a>
<FONT color="green">3653</FONT>        }<a name="line.3653"></a>
<FONT color="green">3654</FONT>    <a name="line.3654"></a>
<FONT color="green">3655</FONT>        /**<a name="line.3655"></a>
<FONT color="green">3656</FONT>         * &lt;p&gt;Removes all occurrences of a substring from within the source string.&lt;/p&gt;<a name="line.3656"></a>
<FONT color="green">3657</FONT>         *<a name="line.3657"></a>
<FONT color="green">3658</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; source string will return &lt;code&gt;null&lt;/code&gt;.<a name="line.3658"></a>
<FONT color="green">3659</FONT>         * An empty ("") source string will return the empty string.<a name="line.3659"></a>
<FONT color="green">3660</FONT>         * A &lt;code&gt;null&lt;/code&gt; remove string will return the source string.<a name="line.3660"></a>
<FONT color="green">3661</FONT>         * An empty ("") remove string will return the source string.&lt;/p&gt;<a name="line.3661"></a>
<FONT color="green">3662</FONT>         *<a name="line.3662"></a>
<FONT color="green">3663</FONT>         * &lt;pre&gt;<a name="line.3663"></a>
<FONT color="green">3664</FONT>         * StringUtils.remove(null, *)        = null<a name="line.3664"></a>
<FONT color="green">3665</FONT>         * StringUtils.remove("", *)          = ""<a name="line.3665"></a>
<FONT color="green">3666</FONT>         * StringUtils.remove(*, null)        = *<a name="line.3666"></a>
<FONT color="green">3667</FONT>         * StringUtils.remove(*, "")          = *<a name="line.3667"></a>
<FONT color="green">3668</FONT>         * StringUtils.remove("queued", "ue") = "qd"<a name="line.3668"></a>
<FONT color="green">3669</FONT>         * StringUtils.remove("queued", "zz") = "queued"<a name="line.3669"></a>
<FONT color="green">3670</FONT>         * &lt;/pre&gt;<a name="line.3670"></a>
<FONT color="green">3671</FONT>         *<a name="line.3671"></a>
<FONT color="green">3672</FONT>         * @param str  the source String to search, may be null<a name="line.3672"></a>
<FONT color="green">3673</FONT>         * @param remove  the String to search for and remove, may be null<a name="line.3673"></a>
<FONT color="green">3674</FONT>         * @return the substring with the string removed if found,<a name="line.3674"></a>
<FONT color="green">3675</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3675"></a>
<FONT color="green">3676</FONT>         * @since 2.1<a name="line.3676"></a>
<FONT color="green">3677</FONT>         */<a name="line.3677"></a>
<FONT color="green">3678</FONT>        public static String remove(String str, String remove) {<a name="line.3678"></a>
<FONT color="green">3679</FONT>            if (isEmpty(str) || isEmpty(remove)) {<a name="line.3679"></a>
<FONT color="green">3680</FONT>                return str;<a name="line.3680"></a>
<FONT color="green">3681</FONT>            }<a name="line.3681"></a>
<FONT color="green">3682</FONT>            return replace(str, remove, EMPTY, -1);<a name="line.3682"></a>
<FONT color="green">3683</FONT>        }<a name="line.3683"></a>
<FONT color="green">3684</FONT>    <a name="line.3684"></a>
<FONT color="green">3685</FONT>        /**<a name="line.3685"></a>
<FONT color="green">3686</FONT>         * &lt;p&gt;Removes all occurrences of a character from within the source string.&lt;/p&gt;<a name="line.3686"></a>
<FONT color="green">3687</FONT>         *<a name="line.3687"></a>
<FONT color="green">3688</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; source string will return &lt;code&gt;null&lt;/code&gt;.<a name="line.3688"></a>
<FONT color="green">3689</FONT>         * An empty ("") source string will return the empty string.&lt;/p&gt;<a name="line.3689"></a>
<FONT color="green">3690</FONT>         *<a name="line.3690"></a>
<FONT color="green">3691</FONT>         * &lt;pre&gt;<a name="line.3691"></a>
<FONT color="green">3692</FONT>         * StringUtils.remove(null, *)       = null<a name="line.3692"></a>
<FONT color="green">3693</FONT>         * StringUtils.remove("", *)         = ""<a name="line.3693"></a>
<FONT color="green">3694</FONT>         * StringUtils.remove("queued", 'u') = "qeed"<a name="line.3694"></a>
<FONT color="green">3695</FONT>         * StringUtils.remove("queued", 'z') = "queued"<a name="line.3695"></a>
<FONT color="green">3696</FONT>         * &lt;/pre&gt;<a name="line.3696"></a>
<FONT color="green">3697</FONT>         *<a name="line.3697"></a>
<FONT color="green">3698</FONT>         * @param str  the source String to search, may be null<a name="line.3698"></a>
<FONT color="green">3699</FONT>         * @param remove  the char to search for and remove, may be null<a name="line.3699"></a>
<FONT color="green">3700</FONT>         * @return the substring with the char removed if found,<a name="line.3700"></a>
<FONT color="green">3701</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3701"></a>
<FONT color="green">3702</FONT>         * @since 2.1<a name="line.3702"></a>
<FONT color="green">3703</FONT>         */<a name="line.3703"></a>
<FONT color="green">3704</FONT>        public static String remove(String str, char remove) {<a name="line.3704"></a>
<FONT color="green">3705</FONT>            if (isEmpty(str) || str.indexOf(remove) == INDEX_NOT_FOUND) {<a name="line.3705"></a>
<FONT color="green">3706</FONT>                return str;<a name="line.3706"></a>
<FONT color="green">3707</FONT>            }<a name="line.3707"></a>
<FONT color="green">3708</FONT>            char[] chars = str.toCharArray();<a name="line.3708"></a>
<FONT color="green">3709</FONT>            int pos = 0;<a name="line.3709"></a>
<FONT color="green">3710</FONT>            for (int i = 0; i &lt; chars.length; i++) {<a name="line.3710"></a>
<FONT color="green">3711</FONT>                if (chars[i] != remove) {<a name="line.3711"></a>
<FONT color="green">3712</FONT>                    chars[pos++] = chars[i];<a name="line.3712"></a>
<FONT color="green">3713</FONT>                }<a name="line.3713"></a>
<FONT color="green">3714</FONT>            }<a name="line.3714"></a>
<FONT color="green">3715</FONT>            return new String(chars, 0, pos);<a name="line.3715"></a>
<FONT color="green">3716</FONT>        }<a name="line.3716"></a>
<FONT color="green">3717</FONT>    <a name="line.3717"></a>
<FONT color="green">3718</FONT>        // Replacing<a name="line.3718"></a>
<FONT color="green">3719</FONT>        //-----------------------------------------------------------------------<a name="line.3719"></a>
<FONT color="green">3720</FONT>        /**<a name="line.3720"></a>
<FONT color="green">3721</FONT>         * &lt;p&gt;Replaces a String with another String inside a larger String, once.&lt;/p&gt;<a name="line.3721"></a>
<FONT color="green">3722</FONT>         *<a name="line.3722"></a>
<FONT color="green">3723</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; reference passed to this method is a no-op.&lt;/p&gt;<a name="line.3723"></a>
<FONT color="green">3724</FONT>         *<a name="line.3724"></a>
<FONT color="green">3725</FONT>         * &lt;pre&gt;<a name="line.3725"></a>
<FONT color="green">3726</FONT>         * StringUtils.replaceOnce(null, *, *)        = null<a name="line.3726"></a>
<FONT color="green">3727</FONT>         * StringUtils.replaceOnce("", *, *)          = ""<a name="line.3727"></a>
<FONT color="green">3728</FONT>         * StringUtils.replaceOnce("any", null, *)    = "any"<a name="line.3728"></a>
<FONT color="green">3729</FONT>         * StringUtils.replaceOnce("any", *, null)    = "any"<a name="line.3729"></a>
<FONT color="green">3730</FONT>         * StringUtils.replaceOnce("any", "", *)      = "any"<a name="line.3730"></a>
<FONT color="green">3731</FONT>         * StringUtils.replaceOnce("aba", "a", null)  = "aba"<a name="line.3731"></a>
<FONT color="green">3732</FONT>         * StringUtils.replaceOnce("aba", "a", "")    = "ba"<a name="line.3732"></a>
<FONT color="green">3733</FONT>         * StringUtils.replaceOnce("aba", "a", "z")   = "zba"<a name="line.3733"></a>
<FONT color="green">3734</FONT>         * &lt;/pre&gt;<a name="line.3734"></a>
<FONT color="green">3735</FONT>         *<a name="line.3735"></a>
<FONT color="green">3736</FONT>         * @see #replace(String text, String searchString, String replacement, int max)<a name="line.3736"></a>
<FONT color="green">3737</FONT>         * @param text  text to search and replace in, may be null<a name="line.3737"></a>
<FONT color="green">3738</FONT>         * @param searchString  the String to search for, may be null<a name="line.3738"></a>
<FONT color="green">3739</FONT>         * @param replacement  the String to replace with, may be null<a name="line.3739"></a>
<FONT color="green">3740</FONT>         * @return the text with any replacements processed,<a name="line.3740"></a>
<FONT color="green">3741</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3741"></a>
<FONT color="green">3742</FONT>         */<a name="line.3742"></a>
<FONT color="green">3743</FONT>        public static String replaceOnce(String text, String searchString, String replacement) {<a name="line.3743"></a>
<FONT color="green">3744</FONT>            return replace(text, searchString, replacement, 1);<a name="line.3744"></a>
<FONT color="green">3745</FONT>        }<a name="line.3745"></a>
<FONT color="green">3746</FONT>    <a name="line.3746"></a>
<FONT color="green">3747</FONT>        /**<a name="line.3747"></a>
<FONT color="green">3748</FONT>         * &lt;p&gt;Replaces all occurrences of a String within another String.&lt;/p&gt;<a name="line.3748"></a>
<FONT color="green">3749</FONT>         *<a name="line.3749"></a>
<FONT color="green">3750</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; reference passed to this method is a no-op.&lt;/p&gt;<a name="line.3750"></a>
<FONT color="green">3751</FONT>         *<a name="line.3751"></a>
<FONT color="green">3752</FONT>         * &lt;pre&gt;<a name="line.3752"></a>
<FONT color="green">3753</FONT>         * StringUtils.replace(null, *, *)        = null<a name="line.3753"></a>
<FONT color="green">3754</FONT>         * StringUtils.replace("", *, *)          = ""<a name="line.3754"></a>
<FONT color="green">3755</FONT>         * StringUtils.replace("any", null, *)    = "any"<a name="line.3755"></a>
<FONT color="green">3756</FONT>         * StringUtils.replace("any", *, null)    = "any"<a name="line.3756"></a>
<FONT color="green">3757</FONT>         * StringUtils.replace("any", "", *)      = "any"<a name="line.3757"></a>
<FONT color="green">3758</FONT>         * StringUtils.replace("aba", "a", null)  = "aba"<a name="line.3758"></a>
<FONT color="green">3759</FONT>         * StringUtils.replace("aba", "a", "")    = "b"<a name="line.3759"></a>
<FONT color="green">3760</FONT>         * StringUtils.replace("aba", "a", "z")   = "zbz"<a name="line.3760"></a>
<FONT color="green">3761</FONT>         * &lt;/pre&gt;<a name="line.3761"></a>
<FONT color="green">3762</FONT>         *<a name="line.3762"></a>
<FONT color="green">3763</FONT>         * @see #replace(String text, String searchString, String replacement, int max)<a name="line.3763"></a>
<FONT color="green">3764</FONT>         * @param text  text to search and replace in, may be null<a name="line.3764"></a>
<FONT color="green">3765</FONT>         * @param searchString  the String to search for, may be null<a name="line.3765"></a>
<FONT color="green">3766</FONT>         * @param replacement  the String to replace it with, may be null<a name="line.3766"></a>
<FONT color="green">3767</FONT>         * @return the text with any replacements processed,<a name="line.3767"></a>
<FONT color="green">3768</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3768"></a>
<FONT color="green">3769</FONT>         */<a name="line.3769"></a>
<FONT color="green">3770</FONT>        public static String replace(String text, String searchString, String replacement) {<a name="line.3770"></a>
<FONT color="green">3771</FONT>            return replace(text, searchString, replacement, -1);<a name="line.3771"></a>
<FONT color="green">3772</FONT>        }<a name="line.3772"></a>
<FONT color="green">3773</FONT>    <a name="line.3773"></a>
<FONT color="green">3774</FONT>        /**<a name="line.3774"></a>
<FONT color="green">3775</FONT>         * &lt;p&gt;Replaces a String with another String inside a larger String,<a name="line.3775"></a>
<FONT color="green">3776</FONT>         * for the first &lt;code&gt;max&lt;/code&gt; values of the search String.&lt;/p&gt;<a name="line.3776"></a>
<FONT color="green">3777</FONT>         *<a name="line.3777"></a>
<FONT color="green">3778</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; reference passed to this method is a no-op.&lt;/p&gt;<a name="line.3778"></a>
<FONT color="green">3779</FONT>         *<a name="line.3779"></a>
<FONT color="green">3780</FONT>         * &lt;pre&gt;<a name="line.3780"></a>
<FONT color="green">3781</FONT>         * StringUtils.replace(null, *, *, *)         = null<a name="line.3781"></a>
<FONT color="green">3782</FONT>         * StringUtils.replace("", *, *, *)           = ""<a name="line.3782"></a>
<FONT color="green">3783</FONT>         * StringUtils.replace("any", null, *, *)     = "any"<a name="line.3783"></a>
<FONT color="green">3784</FONT>         * StringUtils.replace("any", *, null, *)     = "any"<a name="line.3784"></a>
<FONT color="green">3785</FONT>         * StringUtils.replace("any", "", *, *)       = "any"<a name="line.3785"></a>
<FONT color="green">3786</FONT>         * StringUtils.replace("any", *, *, 0)        = "any"<a name="line.3786"></a>
<FONT color="green">3787</FONT>         * StringUtils.replace("abaa", "a", null, -1) = "abaa"<a name="line.3787"></a>
<FONT color="green">3788</FONT>         * StringUtils.replace("abaa", "a", "", -1)   = "b"<a name="line.3788"></a>
<FONT color="green">3789</FONT>         * StringUtils.replace("abaa", "a", "z", 0)   = "abaa"<a name="line.3789"></a>
<FONT color="green">3790</FONT>         * StringUtils.replace("abaa", "a", "z", 1)   = "zbaa"<a name="line.3790"></a>
<FONT color="green">3791</FONT>         * StringUtils.replace("abaa", "a", "z", 2)   = "zbza"<a name="line.3791"></a>
<FONT color="green">3792</FONT>         * StringUtils.replace("abaa", "a", "z", -1)  = "zbzz"<a name="line.3792"></a>
<FONT color="green">3793</FONT>         * &lt;/pre&gt;<a name="line.3793"></a>
<FONT color="green">3794</FONT>         *<a name="line.3794"></a>
<FONT color="green">3795</FONT>         * @param text  text to search and replace in, may be null<a name="line.3795"></a>
<FONT color="green">3796</FONT>         * @param searchString  the String to search for, may be null<a name="line.3796"></a>
<FONT color="green">3797</FONT>         * @param replacement  the String to replace it with, may be null<a name="line.3797"></a>
<FONT color="green">3798</FONT>         * @param max  maximum number of values to replace, or &lt;code&gt;-1&lt;/code&gt; if no maximum<a name="line.3798"></a>
<FONT color="green">3799</FONT>         * @return the text with any replacements processed,<a name="line.3799"></a>
<FONT color="green">3800</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.3800"></a>
<FONT color="green">3801</FONT>         */<a name="line.3801"></a>
<FONT color="green">3802</FONT>        public static String replace(String text, String searchString, String replacement, int max) {<a name="line.3802"></a>
<FONT color="green">3803</FONT>            if (isEmpty(text) || isEmpty(searchString) || replacement == null || max == 0) {<a name="line.3803"></a>
<FONT color="green">3804</FONT>                return text;<a name="line.3804"></a>
<FONT color="green">3805</FONT>            }<a name="line.3805"></a>
<FONT color="green">3806</FONT>            int start = 0;<a name="line.3806"></a>
<FONT color="green">3807</FONT>            int end = text.indexOf(searchString, start);<a name="line.3807"></a>
<FONT color="green">3808</FONT>            if (end == INDEX_NOT_FOUND) {<a name="line.3808"></a>
<FONT color="green">3809</FONT>                return text;<a name="line.3809"></a>
<FONT color="green">3810</FONT>            }<a name="line.3810"></a>
<FONT color="green">3811</FONT>            int replLength = searchString.length();<a name="line.3811"></a>
<FONT color="green">3812</FONT>            int increase = replacement.length() - replLength;<a name="line.3812"></a>
<FONT color="green">3813</FONT>            increase = (increase &lt; 0 ? 0 : increase);<a name="line.3813"></a>
<FONT color="green">3814</FONT>            increase *= (max &lt; 0 ? 16 : (max &gt; 64 ? 64 : max));<a name="line.3814"></a>
<FONT color="green">3815</FONT>            StrBuilder buf = new StrBuilder(text.length() + increase);<a name="line.3815"></a>
<FONT color="green">3816</FONT>            while (end != INDEX_NOT_FOUND) {<a name="line.3816"></a>
<FONT color="green">3817</FONT>                buf.append(text.substring(start, end)).append(replacement);<a name="line.3817"></a>
<FONT color="green">3818</FONT>                start = end + replLength;<a name="line.3818"></a>
<FONT color="green">3819</FONT>                if (--max == 0) {<a name="line.3819"></a>
<FONT color="green">3820</FONT>                    break;<a name="line.3820"></a>
<FONT color="green">3821</FONT>                }<a name="line.3821"></a>
<FONT color="green">3822</FONT>                end = text.indexOf(searchString, start);<a name="line.3822"></a>
<FONT color="green">3823</FONT>            }<a name="line.3823"></a>
<FONT color="green">3824</FONT>            buf.append(text.substring(start));<a name="line.3824"></a>
<FONT color="green">3825</FONT>            return buf.toString();<a name="line.3825"></a>
<FONT color="green">3826</FONT>        }<a name="line.3826"></a>
<FONT color="green">3827</FONT>    <a name="line.3827"></a>
<FONT color="green">3828</FONT>        /**<a name="line.3828"></a>
<FONT color="green">3829</FONT>         * &lt;p&gt;<a name="line.3829"></a>
<FONT color="green">3830</FONT>         * Replaces all occurrences of Strings within another String.<a name="line.3830"></a>
<FONT color="green">3831</FONT>         * &lt;/p&gt;<a name="line.3831"></a>
<FONT color="green">3832</FONT>         * <a name="line.3832"></a>
<FONT color="green">3833</FONT>         * &lt;p&gt;<a name="line.3833"></a>
<FONT color="green">3834</FONT>         * A &lt;code&gt;null&lt;/code&gt; reference passed to this method is a no-op, or if<a name="line.3834"></a>
<FONT color="green">3835</FONT>         * any "search string" or "string to replace" is null, that replace will be<a name="line.3835"></a>
<FONT color="green">3836</FONT>         * ignored. This will not repeat. For repeating replaces, call the<a name="line.3836"></a>
<FONT color="green">3837</FONT>         * overloaded method.<a name="line.3837"></a>
<FONT color="green">3838</FONT>         * &lt;/p&gt;<a name="line.3838"></a>
<FONT color="green">3839</FONT>         * <a name="line.3839"></a>
<FONT color="green">3840</FONT>         * &lt;pre&gt;<a name="line.3840"></a>
<FONT color="green">3841</FONT>         *  StringUtils.replaceEach(null, *, *)        = null<a name="line.3841"></a>
<FONT color="green">3842</FONT>         *  StringUtils.replaceEach("", *, *)          = ""<a name="line.3842"></a>
<FONT color="green">3843</FONT>         *  StringUtils.replaceEach("aba", null, null) = "aba"<a name="line.3843"></a>
<FONT color="green">3844</FONT>         *  StringUtils.replaceEach("aba", new String[0], null) = "aba"<a name="line.3844"></a>
<FONT color="green">3845</FONT>         *  StringUtils.replaceEach("aba", null, new String[0]) = "aba"<a name="line.3845"></a>
<FONT color="green">3846</FONT>         *  StringUtils.replaceEach("aba", new String[]{"a"}, null)  = "aba"<a name="line.3846"></a>
<FONT color="green">3847</FONT>         *  StringUtils.replaceEach("aba", new String[]{"a"}, new String[]{""})  = "b"<a name="line.3847"></a>
<FONT color="green">3848</FONT>         *  StringUtils.replaceEach("aba", new String[]{null}, new String[]{"a"})  = "aba"<a name="line.3848"></a>
<FONT color="green">3849</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"w", "t"})  = "wcte"<a name="line.3849"></a>
<FONT color="green">3850</FONT>         *  (example of how it does not repeat)<a name="line.3850"></a>
<FONT color="green">3851</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"d", "t"})  = "dcte"<a name="line.3851"></a>
<FONT color="green">3852</FONT>         * &lt;/pre&gt;<a name="line.3852"></a>
<FONT color="green">3853</FONT>         * <a name="line.3853"></a>
<FONT color="green">3854</FONT>         * @param text<a name="line.3854"></a>
<FONT color="green">3855</FONT>         *            text to search and replace in, no-op if null<a name="line.3855"></a>
<FONT color="green">3856</FONT>         * @param searchList<a name="line.3856"></a>
<FONT color="green">3857</FONT>         *            the Strings to search for, no-op if null<a name="line.3857"></a>
<FONT color="green">3858</FONT>         * @param replacementList<a name="line.3858"></a>
<FONT color="green">3859</FONT>         *            the Strings to replace them with, no-op if null<a name="line.3859"></a>
<FONT color="green">3860</FONT>         * @return the text with any replacements processed, &lt;code&gt;null&lt;/code&gt; if<a name="line.3860"></a>
<FONT color="green">3861</FONT>         *         null String input<a name="line.3861"></a>
<FONT color="green">3862</FONT>         * @throws IndexOutOfBoundsException<a name="line.3862"></a>
<FONT color="green">3863</FONT>         *             if the lengths of the arrays are not the same (null is ok,<a name="line.3863"></a>
<FONT color="green">3864</FONT>         *             and/or size 0)<a name="line.3864"></a>
<FONT color="green">3865</FONT>         * @since 2.4<a name="line.3865"></a>
<FONT color="green">3866</FONT>         */<a name="line.3866"></a>
<FONT color="green">3867</FONT>        public static String replaceEach(String text, String[] searchList, String[] replacementList) {<a name="line.3867"></a>
<FONT color="green">3868</FONT>            return replaceEach(text, searchList, replacementList, false, 0);<a name="line.3868"></a>
<FONT color="green">3869</FONT>        }<a name="line.3869"></a>
<FONT color="green">3870</FONT>    <a name="line.3870"></a>
<FONT color="green">3871</FONT>        /**<a name="line.3871"></a>
<FONT color="green">3872</FONT>         * &lt;p&gt;<a name="line.3872"></a>
<FONT color="green">3873</FONT>         * Replaces all occurrences of Strings within another String.<a name="line.3873"></a>
<FONT color="green">3874</FONT>         * &lt;/p&gt;<a name="line.3874"></a>
<FONT color="green">3875</FONT>         * <a name="line.3875"></a>
<FONT color="green">3876</FONT>         * &lt;p&gt;<a name="line.3876"></a>
<FONT color="green">3877</FONT>         * A &lt;code&gt;null&lt;/code&gt; reference passed to this method is a no-op, or if<a name="line.3877"></a>
<FONT color="green">3878</FONT>         * any "search string" or "string to replace" is null, that replace will be<a name="line.3878"></a>
<FONT color="green">3879</FONT>         * ignored. This will not repeat. For repeating replaces, call the<a name="line.3879"></a>
<FONT color="green">3880</FONT>         * overloaded method.<a name="line.3880"></a>
<FONT color="green">3881</FONT>         * &lt;/p&gt;<a name="line.3881"></a>
<FONT color="green">3882</FONT>         * <a name="line.3882"></a>
<FONT color="green">3883</FONT>         * &lt;pre&gt;<a name="line.3883"></a>
<FONT color="green">3884</FONT>         *  StringUtils.replaceEach(null, *, *, *) = null<a name="line.3884"></a>
<FONT color="green">3885</FONT>         *  StringUtils.replaceEach("", *, *, *) = ""<a name="line.3885"></a>
<FONT color="green">3886</FONT>         *  StringUtils.replaceEach("aba", null, null, *) = "aba"<a name="line.3886"></a>
<FONT color="green">3887</FONT>         *  StringUtils.replaceEach("aba", new String[0], null, *) = "aba"<a name="line.3887"></a>
<FONT color="green">3888</FONT>         *  StringUtils.replaceEach("aba", null, new String[0], *) = "aba"<a name="line.3888"></a>
<FONT color="green">3889</FONT>         *  StringUtils.replaceEach("aba", new String[]{"a"}, null, *) = "aba"<a name="line.3889"></a>
<FONT color="green">3890</FONT>         *  StringUtils.replaceEach("aba", new String[]{"a"}, new String[]{""}, *) = "b"<a name="line.3890"></a>
<FONT color="green">3891</FONT>         *  StringUtils.replaceEach("aba", new String[]{null}, new String[]{"a"}, *) = "aba"<a name="line.3891"></a>
<FONT color="green">3892</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"w", "t"}, *) = "wcte"<a name="line.3892"></a>
<FONT color="green">3893</FONT>         *  (example of how it repeats)<a name="line.3893"></a>
<FONT color="green">3894</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"d", "t"}, false) = "dcte"<a name="line.3894"></a>
<FONT color="green">3895</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"d", "t"}, true) = "tcte"<a name="line.3895"></a>
<FONT color="green">3896</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"d", "ab"}, true) = IllegalArgumentException<a name="line.3896"></a>
<FONT color="green">3897</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"d", "ab"}, false) = "dcabe"<a name="line.3897"></a>
<FONT color="green">3898</FONT>         * &lt;/pre&gt;<a name="line.3898"></a>
<FONT color="green">3899</FONT>         * <a name="line.3899"></a>
<FONT color="green">3900</FONT>         * @param text<a name="line.3900"></a>
<FONT color="green">3901</FONT>         *            text to search and replace in, no-op if null<a name="line.3901"></a>
<FONT color="green">3902</FONT>         * @param searchList<a name="line.3902"></a>
<FONT color="green">3903</FONT>         *            the Strings to search for, no-op if null<a name="line.3903"></a>
<FONT color="green">3904</FONT>         * @param replacementList<a name="line.3904"></a>
<FONT color="green">3905</FONT>         *            the Strings to replace them with, no-op if null<a name="line.3905"></a>
<FONT color="green">3906</FONT>         * @return the text with any replacements processed, &lt;code&gt;null&lt;/code&gt; if<a name="line.3906"></a>
<FONT color="green">3907</FONT>         *         null String input<a name="line.3907"></a>
<FONT color="green">3908</FONT>         * @throws IllegalArgumentException<a name="line.3908"></a>
<FONT color="green">3909</FONT>         *             if the search is repeating and there is an endless loop due<a name="line.3909"></a>
<FONT color="green">3910</FONT>         *             to outputs of one being inputs to another<a name="line.3910"></a>
<FONT color="green">3911</FONT>         * @throws IndexOutOfBoundsException<a name="line.3911"></a>
<FONT color="green">3912</FONT>         *             if the lengths of the arrays are not the same (null is ok,<a name="line.3912"></a>
<FONT color="green">3913</FONT>         *             and/or size 0)<a name="line.3913"></a>
<FONT color="green">3914</FONT>         * @since 2.4<a name="line.3914"></a>
<FONT color="green">3915</FONT>         */<a name="line.3915"></a>
<FONT color="green">3916</FONT>        public static String replaceEachRepeatedly(String text, String[] searchList, String[] replacementList) {<a name="line.3916"></a>
<FONT color="green">3917</FONT>            // timeToLive should be 0 if not used or nothing to replace, else it's<a name="line.3917"></a>
<FONT color="green">3918</FONT>            // the length of the replace array<a name="line.3918"></a>
<FONT color="green">3919</FONT>            int timeToLive = searchList == null ? 0 : searchList.length;<a name="line.3919"></a>
<FONT color="green">3920</FONT>            return replaceEach(text, searchList, replacementList, true, timeToLive);<a name="line.3920"></a>
<FONT color="green">3921</FONT>        }<a name="line.3921"></a>
<FONT color="green">3922</FONT>    <a name="line.3922"></a>
<FONT color="green">3923</FONT>        /**<a name="line.3923"></a>
<FONT color="green">3924</FONT>         * &lt;p&gt;<a name="line.3924"></a>
<FONT color="green">3925</FONT>         * Replaces all occurrences of Strings within another String.<a name="line.3925"></a>
<FONT color="green">3926</FONT>         * &lt;/p&gt;<a name="line.3926"></a>
<FONT color="green">3927</FONT>         * <a name="line.3927"></a>
<FONT color="green">3928</FONT>         * &lt;p&gt;<a name="line.3928"></a>
<FONT color="green">3929</FONT>         * A &lt;code&gt;null&lt;/code&gt; reference passed to this method is a no-op, or if<a name="line.3929"></a>
<FONT color="green">3930</FONT>         * any "search string" or "string to replace" is null, that replace will be<a name="line.3930"></a>
<FONT color="green">3931</FONT>         * ignored. <a name="line.3931"></a>
<FONT color="green">3932</FONT>         * &lt;/p&gt;<a name="line.3932"></a>
<FONT color="green">3933</FONT>         * <a name="line.3933"></a>
<FONT color="green">3934</FONT>         * &lt;pre&gt;<a name="line.3934"></a>
<FONT color="green">3935</FONT>         *  StringUtils.replaceEach(null, *, *, *) = null<a name="line.3935"></a>
<FONT color="green">3936</FONT>         *  StringUtils.replaceEach("", *, *, *) = ""<a name="line.3936"></a>
<FONT color="green">3937</FONT>         *  StringUtils.replaceEach("aba", null, null, *) = "aba"<a name="line.3937"></a>
<FONT color="green">3938</FONT>         *  StringUtils.replaceEach("aba", new String[0], null, *) = "aba"<a name="line.3938"></a>
<FONT color="green">3939</FONT>         *  StringUtils.replaceEach("aba", null, new String[0], *) = "aba"<a name="line.3939"></a>
<FONT color="green">3940</FONT>         *  StringUtils.replaceEach("aba", new String[]{"a"}, null, *) = "aba"<a name="line.3940"></a>
<FONT color="green">3941</FONT>         *  StringUtils.replaceEach("aba", new String[]{"a"}, new String[]{""}, *) = "b"<a name="line.3941"></a>
<FONT color="green">3942</FONT>         *  StringUtils.replaceEach("aba", new String[]{null}, new String[]{"a"}, *) = "aba"<a name="line.3942"></a>
<FONT color="green">3943</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"w", "t"}, *) = "wcte"<a name="line.3943"></a>
<FONT color="green">3944</FONT>         *  (example of how it repeats)<a name="line.3944"></a>
<FONT color="green">3945</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"d", "t"}, false) = "dcte"<a name="line.3945"></a>
<FONT color="green">3946</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"d", "t"}, true) = "tcte"<a name="line.3946"></a>
<FONT color="green">3947</FONT>         *  StringUtils.replaceEach("abcde", new String[]{"ab", "d"}, new String[]{"d", "ab"}, *) = IllegalArgumentException<a name="line.3947"></a>
<FONT color="green">3948</FONT>         * &lt;/pre&gt;<a name="line.3948"></a>
<FONT color="green">3949</FONT>         * <a name="line.3949"></a>
<FONT color="green">3950</FONT>         * @param text<a name="line.3950"></a>
<FONT color="green">3951</FONT>         *            text to search and replace in, no-op if null<a name="line.3951"></a>
<FONT color="green">3952</FONT>         * @param searchList<a name="line.3952"></a>
<FONT color="green">3953</FONT>         *            the Strings to search for, no-op if null<a name="line.3953"></a>
<FONT color="green">3954</FONT>         * @param replacementList<a name="line.3954"></a>
<FONT color="green">3955</FONT>         *            the Strings to replace them with, no-op if null<a name="line.3955"></a>
<FONT color="green">3956</FONT>         * @param repeat if true, then replace repeatedly <a name="line.3956"></a>
<FONT color="green">3957</FONT>         *       until there are no more possible replacements or timeToLive &lt; 0<a name="line.3957"></a>
<FONT color="green">3958</FONT>         * @param timeToLive<a name="line.3958"></a>
<FONT color="green">3959</FONT>         *            if less than 0 then there is a circular reference and endless<a name="line.3959"></a>
<FONT color="green">3960</FONT>         *            loop<a name="line.3960"></a>
<FONT color="green">3961</FONT>         * @return the text with any replacements processed, &lt;code&gt;null&lt;/code&gt; if<a name="line.3961"></a>
<FONT color="green">3962</FONT>         *         null String input<a name="line.3962"></a>
<FONT color="green">3963</FONT>         * @throws IllegalArgumentException<a name="line.3963"></a>
<FONT color="green">3964</FONT>         *             if the search is repeating and there is an endless loop due<a name="line.3964"></a>
<FONT color="green">3965</FONT>         *             to outputs of one being inputs to another<a name="line.3965"></a>
<FONT color="green">3966</FONT>         * @throws IndexOutOfBoundsException<a name="line.3966"></a>
<FONT color="green">3967</FONT>         *             if the lengths of the arrays are not the same (null is ok,<a name="line.3967"></a>
<FONT color="green">3968</FONT>         *             and/or size 0)<a name="line.3968"></a>
<FONT color="green">3969</FONT>         * @since 2.4<a name="line.3969"></a>
<FONT color="green">3970</FONT>         */<a name="line.3970"></a>
<FONT color="green">3971</FONT>        private static String replaceEach(String text, String[] searchList, String[] replacementList, <a name="line.3971"></a>
<FONT color="green">3972</FONT>                                          boolean repeat, int timeToLive) <a name="line.3972"></a>
<FONT color="green">3973</FONT>        {<a name="line.3973"></a>
<FONT color="green">3974</FONT>    <a name="line.3974"></a>
<FONT color="green">3975</FONT>            // mchyzer Performance note: This creates very few new objects (one major goal)<a name="line.3975"></a>
<FONT color="green">3976</FONT>            // let me know if there are performance requests, we can create a harness to measure<a name="line.3976"></a>
<FONT color="green">3977</FONT>    <a name="line.3977"></a>
<FONT color="green">3978</FONT>            if (text == null || text.length() == 0 || searchList == null || <a name="line.3978"></a>
<FONT color="green">3979</FONT>                searchList.length == 0 || replacementList == null || replacementList.length == 0) <a name="line.3979"></a>
<FONT color="green">3980</FONT>            {<a name="line.3980"></a>
<FONT color="green">3981</FONT>                return text;<a name="line.3981"></a>
<FONT color="green">3982</FONT>            }<a name="line.3982"></a>
<FONT color="green">3983</FONT>    <a name="line.3983"></a>
<FONT color="green">3984</FONT>            // if recursing, this shouldnt be less than 0<a name="line.3984"></a>
<FONT color="green">3985</FONT>            if (timeToLive &lt; 0) {<a name="line.3985"></a>
<FONT color="green">3986</FONT>                throw new IllegalStateException("TimeToLive of " + timeToLive + " is less than 0: " + text);<a name="line.3986"></a>
<FONT color="green">3987</FONT>            }<a name="line.3987"></a>
<FONT color="green">3988</FONT>    <a name="line.3988"></a>
<FONT color="green">3989</FONT>            int searchLength = searchList.length;<a name="line.3989"></a>
<FONT color="green">3990</FONT>            int replacementLength = replacementList.length;<a name="line.3990"></a>
<FONT color="green">3991</FONT>    <a name="line.3991"></a>
<FONT color="green">3992</FONT>            // make sure lengths are ok, these need to be equal<a name="line.3992"></a>
<FONT color="green">3993</FONT>            if (searchLength != replacementLength) {<a name="line.3993"></a>
<FONT color="green">3994</FONT>                throw new IllegalArgumentException("Search and Replace array lengths don't match: "<a name="line.3994"></a>
<FONT color="green">3995</FONT>                    + searchLength<a name="line.3995"></a>
<FONT color="green">3996</FONT>                    + " vs "<a name="line.3996"></a>
<FONT color="green">3997</FONT>                    + replacementLength);<a name="line.3997"></a>
<FONT color="green">3998</FONT>            }<a name="line.3998"></a>
<FONT color="green">3999</FONT>    <a name="line.3999"></a>
<FONT color="green">4000</FONT>            // keep track of which still have matches<a name="line.4000"></a>
<FONT color="green">4001</FONT>            boolean[] noMoreMatchesForReplIndex = new boolean[searchLength];<a name="line.4001"></a>
<FONT color="green">4002</FONT>    <a name="line.4002"></a>
<FONT color="green">4003</FONT>            // index on index that the match was found<a name="line.4003"></a>
<FONT color="green">4004</FONT>            int textIndex = -1;<a name="line.4004"></a>
<FONT color="green">4005</FONT>            int replaceIndex = -1;<a name="line.4005"></a>
<FONT color="green">4006</FONT>            int tempIndex = -1;<a name="line.4006"></a>
<FONT color="green">4007</FONT>    <a name="line.4007"></a>
<FONT color="green">4008</FONT>            // index of replace array that will replace the search string found<a name="line.4008"></a>
<FONT color="green">4009</FONT>            // NOTE: logic duplicated below START<a name="line.4009"></a>
<FONT color="green">4010</FONT>            for (int i = 0; i &lt; searchLength; i++) {<a name="line.4010"></a>
<FONT color="green">4011</FONT>                if (noMoreMatchesForReplIndex[i] || searchList[i] == null || <a name="line.4011"></a>
<FONT color="green">4012</FONT>                    searchList[i].length() == 0 || replacementList[i] == null) <a name="line.4012"></a>
<FONT color="green">4013</FONT>                {<a name="line.4013"></a>
<FONT color="green">4014</FONT>                    continue;<a name="line.4014"></a>
<FONT color="green">4015</FONT>                }<a name="line.4015"></a>
<FONT color="green">4016</FONT>                tempIndex = text.indexOf(searchList[i]);<a name="line.4016"></a>
<FONT color="green">4017</FONT>    <a name="line.4017"></a>
<FONT color="green">4018</FONT>                // see if we need to keep searching for this<a name="line.4018"></a>
<FONT color="green">4019</FONT>                if (tempIndex == -1) {<a name="line.4019"></a>
<FONT color="green">4020</FONT>                    noMoreMatchesForReplIndex[i] = true;<a name="line.4020"></a>
<FONT color="green">4021</FONT>                } else {<a name="line.4021"></a>
<FONT color="green">4022</FONT>                    if (textIndex == -1 || tempIndex &lt; textIndex) {<a name="line.4022"></a>
<FONT color="green">4023</FONT>                        textIndex = tempIndex;<a name="line.4023"></a>
<FONT color="green">4024</FONT>                        replaceIndex = i;<a name="line.4024"></a>
<FONT color="green">4025</FONT>                    }<a name="line.4025"></a>
<FONT color="green">4026</FONT>                }<a name="line.4026"></a>
<FONT color="green">4027</FONT>            }<a name="line.4027"></a>
<FONT color="green">4028</FONT>            // NOTE: logic mostly below END<a name="line.4028"></a>
<FONT color="green">4029</FONT>    <a name="line.4029"></a>
<FONT color="green">4030</FONT>            // no search strings found, we are done<a name="line.4030"></a>
<FONT color="green">4031</FONT>            if (textIndex == -1) {<a name="line.4031"></a>
<FONT color="green">4032</FONT>                return text;<a name="line.4032"></a>
<FONT color="green">4033</FONT>            }<a name="line.4033"></a>
<FONT color="green">4034</FONT>    <a name="line.4034"></a>
<FONT color="green">4035</FONT>            int start = 0;<a name="line.4035"></a>
<FONT color="green">4036</FONT>    <a name="line.4036"></a>
<FONT color="green">4037</FONT>            // get a good guess on the size of the result buffer so it doesnt have to double if it goes over a bit<a name="line.4037"></a>
<FONT color="green">4038</FONT>            int increase = 0;<a name="line.4038"></a>
<FONT color="green">4039</FONT>    <a name="line.4039"></a>
<FONT color="green">4040</FONT>            // count the replacement text elements that are larger than their corresponding text being replaced<a name="line.4040"></a>
<FONT color="green">4041</FONT>            for (int i = 0; i &lt; searchList.length; i++) {<a name="line.4041"></a>
<FONT color="green">4042</FONT>                if (searchList[i] == null || replacementList[i] == null) {<a name="line.4042"></a>
<FONT color="green">4043</FONT>                    continue;<a name="line.4043"></a>
<FONT color="green">4044</FONT>                }<a name="line.4044"></a>
<FONT color="green">4045</FONT>                int greater = replacementList[i].length() - searchList[i].length();<a name="line.4045"></a>
<FONT color="green">4046</FONT>                if (greater &gt; 0) {<a name="line.4046"></a>
<FONT color="green">4047</FONT>                    increase += 3 * greater; // assume 3 matches<a name="line.4047"></a>
<FONT color="green">4048</FONT>                }<a name="line.4048"></a>
<FONT color="green">4049</FONT>            }<a name="line.4049"></a>
<FONT color="green">4050</FONT>            // have upper-bound at 20% increase, then let Java take over<a name="line.4050"></a>
<FONT color="green">4051</FONT>            increase = Math.min(increase, text.length() / 5);<a name="line.4051"></a>
<FONT color="green">4052</FONT>    <a name="line.4052"></a>
<FONT color="green">4053</FONT>            StrBuilder buf = new StrBuilder(text.length() + increase);<a name="line.4053"></a>
<FONT color="green">4054</FONT>    <a name="line.4054"></a>
<FONT color="green">4055</FONT>            while (textIndex != -1) {<a name="line.4055"></a>
<FONT color="green">4056</FONT>    <a name="line.4056"></a>
<FONT color="green">4057</FONT>                for (int i = start; i &lt; textIndex; i++) {<a name="line.4057"></a>
<FONT color="green">4058</FONT>                    buf.append(text.charAt(i));<a name="line.4058"></a>
<FONT color="green">4059</FONT>                }<a name="line.4059"></a>
<FONT color="green">4060</FONT>                buf.append(replacementList[replaceIndex]);<a name="line.4060"></a>
<FONT color="green">4061</FONT>    <a name="line.4061"></a>
<FONT color="green">4062</FONT>                start = textIndex + searchList[replaceIndex].length();<a name="line.4062"></a>
<FONT color="green">4063</FONT>    <a name="line.4063"></a>
<FONT color="green">4064</FONT>                textIndex = -1;<a name="line.4064"></a>
<FONT color="green">4065</FONT>                replaceIndex = -1;<a name="line.4065"></a>
<FONT color="green">4066</FONT>                tempIndex = -1;<a name="line.4066"></a>
<FONT color="green">4067</FONT>                // find the next earliest match<a name="line.4067"></a>
<FONT color="green">4068</FONT>                // NOTE: logic mostly duplicated above START<a name="line.4068"></a>
<FONT color="green">4069</FONT>                for (int i = 0; i &lt; searchLength; i++) {<a name="line.4069"></a>
<FONT color="green">4070</FONT>                    if (noMoreMatchesForReplIndex[i] || searchList[i] == null || <a name="line.4070"></a>
<FONT color="green">4071</FONT>                        searchList[i].length() == 0 || replacementList[i] == null) <a name="line.4071"></a>
<FONT color="green">4072</FONT>                    {<a name="line.4072"></a>
<FONT color="green">4073</FONT>                        continue;<a name="line.4073"></a>
<FONT color="green">4074</FONT>                    }<a name="line.4074"></a>
<FONT color="green">4075</FONT>                    tempIndex = text.indexOf(searchList[i], start);<a name="line.4075"></a>
<FONT color="green">4076</FONT>    <a name="line.4076"></a>
<FONT color="green">4077</FONT>                    // see if we need to keep searching for this<a name="line.4077"></a>
<FONT color="green">4078</FONT>                    if (tempIndex == -1) {<a name="line.4078"></a>
<FONT color="green">4079</FONT>                        noMoreMatchesForReplIndex[i] = true;<a name="line.4079"></a>
<FONT color="green">4080</FONT>                    } else {<a name="line.4080"></a>
<FONT color="green">4081</FONT>                        if (textIndex == -1 || tempIndex &lt; textIndex) {<a name="line.4081"></a>
<FONT color="green">4082</FONT>                            textIndex = tempIndex;<a name="line.4082"></a>
<FONT color="green">4083</FONT>                            replaceIndex = i;<a name="line.4083"></a>
<FONT color="green">4084</FONT>                        }<a name="line.4084"></a>
<FONT color="green">4085</FONT>                    }<a name="line.4085"></a>
<FONT color="green">4086</FONT>                }<a name="line.4086"></a>
<FONT color="green">4087</FONT>                // NOTE: logic duplicated above END<a name="line.4087"></a>
<FONT color="green">4088</FONT>    <a name="line.4088"></a>
<FONT color="green">4089</FONT>            }<a name="line.4089"></a>
<FONT color="green">4090</FONT>            int textLength = text.length();<a name="line.4090"></a>
<FONT color="green">4091</FONT>            for (int i = start; i &lt; textLength; i++) {<a name="line.4091"></a>
<FONT color="green">4092</FONT>                buf.append(text.charAt(i));<a name="line.4092"></a>
<FONT color="green">4093</FONT>            }<a name="line.4093"></a>
<FONT color="green">4094</FONT>            String result = buf.toString();<a name="line.4094"></a>
<FONT color="green">4095</FONT>            if (!repeat) {<a name="line.4095"></a>
<FONT color="green">4096</FONT>                return result;<a name="line.4096"></a>
<FONT color="green">4097</FONT>            }<a name="line.4097"></a>
<FONT color="green">4098</FONT>    <a name="line.4098"></a>
<FONT color="green">4099</FONT>            return replaceEach(result, searchList, replacementList, repeat, timeToLive - 1);<a name="line.4099"></a>
<FONT color="green">4100</FONT>        }<a name="line.4100"></a>
<FONT color="green">4101</FONT>    <a name="line.4101"></a>
<FONT color="green">4102</FONT>        // Replace, character based<a name="line.4102"></a>
<FONT color="green">4103</FONT>        //-----------------------------------------------------------------------<a name="line.4103"></a>
<FONT color="green">4104</FONT>        /**<a name="line.4104"></a>
<FONT color="green">4105</FONT>         * &lt;p&gt;Replaces all occurrences of a character in a String with another.<a name="line.4105"></a>
<FONT color="green">4106</FONT>         * This is a null-safe version of {@link String#replace(char, char)}.&lt;/p&gt;<a name="line.4106"></a>
<FONT color="green">4107</FONT>         *<a name="line.4107"></a>
<FONT color="green">4108</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; string input returns &lt;code&gt;null&lt;/code&gt;.<a name="line.4108"></a>
<FONT color="green">4109</FONT>         * An empty ("") string input returns an empty string.&lt;/p&gt;<a name="line.4109"></a>
<FONT color="green">4110</FONT>         *<a name="line.4110"></a>
<FONT color="green">4111</FONT>         * &lt;pre&gt;<a name="line.4111"></a>
<FONT color="green">4112</FONT>         * StringUtils.replaceChars(null, *, *)        = null<a name="line.4112"></a>
<FONT color="green">4113</FONT>         * StringUtils.replaceChars("", *, *)          = ""<a name="line.4113"></a>
<FONT color="green">4114</FONT>         * StringUtils.replaceChars("abcba", 'b', 'y') = "aycya"<a name="line.4114"></a>
<FONT color="green">4115</FONT>         * StringUtils.replaceChars("abcba", 'z', 'y') = "abcba"<a name="line.4115"></a>
<FONT color="green">4116</FONT>         * &lt;/pre&gt;<a name="line.4116"></a>
<FONT color="green">4117</FONT>         *<a name="line.4117"></a>
<FONT color="green">4118</FONT>         * @param str  String to replace characters in, may be null<a name="line.4118"></a>
<FONT color="green">4119</FONT>         * @param searchChar  the character to search for, may be null<a name="line.4119"></a>
<FONT color="green">4120</FONT>         * @param replaceChar  the character to replace, may be null<a name="line.4120"></a>
<FONT color="green">4121</FONT>         * @return modified String, &lt;code&gt;null&lt;/code&gt; if null string input<a name="line.4121"></a>
<FONT color="green">4122</FONT>         * @since 2.0<a name="line.4122"></a>
<FONT color="green">4123</FONT>         */<a name="line.4123"></a>
<FONT color="green">4124</FONT>        public static String replaceChars(String str, char searchChar, char replaceChar) {<a name="line.4124"></a>
<FONT color="green">4125</FONT>            if (str == null) {<a name="line.4125"></a>
<FONT color="green">4126</FONT>                return null;<a name="line.4126"></a>
<FONT color="green">4127</FONT>            }<a name="line.4127"></a>
<FONT color="green">4128</FONT>            return str.replace(searchChar, replaceChar);<a name="line.4128"></a>
<FONT color="green">4129</FONT>        }<a name="line.4129"></a>
<FONT color="green">4130</FONT>    <a name="line.4130"></a>
<FONT color="green">4131</FONT>        /**<a name="line.4131"></a>
<FONT color="green">4132</FONT>         * &lt;p&gt;Replaces multiple characters in a String in one go.<a name="line.4132"></a>
<FONT color="green">4133</FONT>         * This method can also be used to delete characters.&lt;/p&gt;<a name="line.4133"></a>
<FONT color="green">4134</FONT>         *<a name="line.4134"></a>
<FONT color="green">4135</FONT>         * &lt;p&gt;For example:&lt;br /&gt;<a name="line.4135"></a>
<FONT color="green">4136</FONT>         * &lt;code&gt;replaceChars(&amp;quot;hello&amp;quot;, &amp;quot;ho&amp;quot;, &amp;quot;jy&amp;quot;) = jelly&lt;/code&gt;.&lt;/p&gt;<a name="line.4136"></a>
<FONT color="green">4137</FONT>         *<a name="line.4137"></a>
<FONT color="green">4138</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; string input returns &lt;code&gt;null&lt;/code&gt;.<a name="line.4138"></a>
<FONT color="green">4139</FONT>         * An empty ("") string input returns an empty string.<a name="line.4139"></a>
<FONT color="green">4140</FONT>         * A null or empty set of search characters returns the input string.&lt;/p&gt;<a name="line.4140"></a>
<FONT color="green">4141</FONT>         *<a name="line.4141"></a>
<FONT color="green">4142</FONT>         * &lt;p&gt;The length of the search characters should normally equal the length<a name="line.4142"></a>
<FONT color="green">4143</FONT>         * of the replace characters.<a name="line.4143"></a>
<FONT color="green">4144</FONT>         * If the search characters is longer, then the extra search characters<a name="line.4144"></a>
<FONT color="green">4145</FONT>         * are deleted.<a name="line.4145"></a>
<FONT color="green">4146</FONT>         * If the search characters is shorter, then the extra replace characters<a name="line.4146"></a>
<FONT color="green">4147</FONT>         * are ignored.&lt;/p&gt;<a name="line.4147"></a>
<FONT color="green">4148</FONT>         *<a name="line.4148"></a>
<FONT color="green">4149</FONT>         * &lt;pre&gt;<a name="line.4149"></a>
<FONT color="green">4150</FONT>         * StringUtils.replaceChars(null, *, *)           = null<a name="line.4150"></a>
<FONT color="green">4151</FONT>         * StringUtils.replaceChars("", *, *)             = ""<a name="line.4151"></a>
<FONT color="green">4152</FONT>         * StringUtils.replaceChars("abc", null, *)       = "abc"<a name="line.4152"></a>
<FONT color="green">4153</FONT>         * StringUtils.replaceChars("abc", "", *)         = "abc"<a name="line.4153"></a>
<FONT color="green">4154</FONT>         * StringUtils.replaceChars("abc", "b", null)     = "ac"<a name="line.4154"></a>
<FONT color="green">4155</FONT>         * StringUtils.replaceChars("abc", "b", "")       = "ac"<a name="line.4155"></a>
<FONT color="green">4156</FONT>         * StringUtils.replaceChars("abcba", "bc", "yz")  = "ayzya"<a name="line.4156"></a>
<FONT color="green">4157</FONT>         * StringUtils.replaceChars("abcba", "bc", "y")   = "ayya"<a name="line.4157"></a>
<FONT color="green">4158</FONT>         * StringUtils.replaceChars("abcba", "bc", "yzx") = "ayzya"<a name="line.4158"></a>
<FONT color="green">4159</FONT>         * &lt;/pre&gt;<a name="line.4159"></a>
<FONT color="green">4160</FONT>         *<a name="line.4160"></a>
<FONT color="green">4161</FONT>         * @param str  String to replace characters in, may be null<a name="line.4161"></a>
<FONT color="green">4162</FONT>         * @param searchChars  a set of characters to search for, may be null<a name="line.4162"></a>
<FONT color="green">4163</FONT>         * @param replaceChars  a set of characters to replace, may be null<a name="line.4163"></a>
<FONT color="green">4164</FONT>         * @return modified String, &lt;code&gt;null&lt;/code&gt; if null string input<a name="line.4164"></a>
<FONT color="green">4165</FONT>         * @since 2.0<a name="line.4165"></a>
<FONT color="green">4166</FONT>         */<a name="line.4166"></a>
<FONT color="green">4167</FONT>        public static String replaceChars(String str, String searchChars, String replaceChars) {<a name="line.4167"></a>
<FONT color="green">4168</FONT>            if (isEmpty(str) || isEmpty(searchChars)) {<a name="line.4168"></a>
<FONT color="green">4169</FONT>                return str;<a name="line.4169"></a>
<FONT color="green">4170</FONT>            }<a name="line.4170"></a>
<FONT color="green">4171</FONT>            if (replaceChars == null) {<a name="line.4171"></a>
<FONT color="green">4172</FONT>                replaceChars = EMPTY;<a name="line.4172"></a>
<FONT color="green">4173</FONT>            }<a name="line.4173"></a>
<FONT color="green">4174</FONT>            boolean modified = false;<a name="line.4174"></a>
<FONT color="green">4175</FONT>            int replaceCharsLength = replaceChars.length();<a name="line.4175"></a>
<FONT color="green">4176</FONT>            int strLength = str.length();<a name="line.4176"></a>
<FONT color="green">4177</FONT>            StrBuilder buf = new StrBuilder(strLength);<a name="line.4177"></a>
<FONT color="green">4178</FONT>            for (int i = 0; i &lt; strLength; i++) {<a name="line.4178"></a>
<FONT color="green">4179</FONT>                char ch = str.charAt(i);<a name="line.4179"></a>
<FONT color="green">4180</FONT>                int index = searchChars.indexOf(ch);<a name="line.4180"></a>
<FONT color="green">4181</FONT>                if (index &gt;= 0) {<a name="line.4181"></a>
<FONT color="green">4182</FONT>                    modified = true;<a name="line.4182"></a>
<FONT color="green">4183</FONT>                    if (index &lt; replaceCharsLength) {<a name="line.4183"></a>
<FONT color="green">4184</FONT>                        buf.append(replaceChars.charAt(index));<a name="line.4184"></a>
<FONT color="green">4185</FONT>                    }<a name="line.4185"></a>
<FONT color="green">4186</FONT>                } else {<a name="line.4186"></a>
<FONT color="green">4187</FONT>                    buf.append(ch);<a name="line.4187"></a>
<FONT color="green">4188</FONT>                }<a name="line.4188"></a>
<FONT color="green">4189</FONT>            }<a name="line.4189"></a>
<FONT color="green">4190</FONT>            if (modified) {<a name="line.4190"></a>
<FONT color="green">4191</FONT>                return buf.toString();<a name="line.4191"></a>
<FONT color="green">4192</FONT>            }<a name="line.4192"></a>
<FONT color="green">4193</FONT>            return str;<a name="line.4193"></a>
<FONT color="green">4194</FONT>        }<a name="line.4194"></a>
<FONT color="green">4195</FONT>    <a name="line.4195"></a>
<FONT color="green">4196</FONT>        // Overlay<a name="line.4196"></a>
<FONT color="green">4197</FONT>        //-----------------------------------------------------------------------<a name="line.4197"></a>
<FONT color="green">4198</FONT>        /**<a name="line.4198"></a>
<FONT color="green">4199</FONT>         * &lt;p&gt;Overlays part of a String with another String.&lt;/p&gt;<a name="line.4199"></a>
<FONT color="green">4200</FONT>         *<a name="line.4200"></a>
<FONT color="green">4201</FONT>         * &lt;pre&gt;<a name="line.4201"></a>
<FONT color="green">4202</FONT>         * StringUtils.overlayString(null, *, *, *)           = NullPointerException<a name="line.4202"></a>
<FONT color="green">4203</FONT>         * StringUtils.overlayString(*, null, *, *)           = NullPointerException<a name="line.4203"></a>
<FONT color="green">4204</FONT>         * StringUtils.overlayString("", "abc", 0, 0)         = "abc"<a name="line.4204"></a>
<FONT color="green">4205</FONT>         * StringUtils.overlayString("abcdef", null, 2, 4)    = "abef"<a name="line.4205"></a>
<FONT color="green">4206</FONT>         * StringUtils.overlayString("abcdef", "", 2, 4)      = "abef"<a name="line.4206"></a>
<FONT color="green">4207</FONT>         * StringUtils.overlayString("abcdef", "zzzz", 2, 4)  = "abzzzzef"<a name="line.4207"></a>
<FONT color="green">4208</FONT>         * StringUtils.overlayString("abcdef", "zzzz", 4, 2)  = "abcdzzzzcdef"<a name="line.4208"></a>
<FONT color="green">4209</FONT>         * StringUtils.overlayString("abcdef", "zzzz", -1, 4) = IndexOutOfBoundsException<a name="line.4209"></a>
<FONT color="green">4210</FONT>         * StringUtils.overlayString("abcdef", "zzzz", 2, 8)  = IndexOutOfBoundsException<a name="line.4210"></a>
<FONT color="green">4211</FONT>         * &lt;/pre&gt;<a name="line.4211"></a>
<FONT color="green">4212</FONT>         *<a name="line.4212"></a>
<FONT color="green">4213</FONT>         * @param text  the String to do overlaying in, may be null<a name="line.4213"></a>
<FONT color="green">4214</FONT>         * @param overlay  the String to overlay, may be null<a name="line.4214"></a>
<FONT color="green">4215</FONT>         * @param start  the position to start overlaying at, must be valid<a name="line.4215"></a>
<FONT color="green">4216</FONT>         * @param end  the position to stop overlaying before, must be valid<a name="line.4216"></a>
<FONT color="green">4217</FONT>         * @return overlayed String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4217"></a>
<FONT color="green">4218</FONT>         * @throws NullPointerException if text or overlay is null<a name="line.4218"></a>
<FONT color="green">4219</FONT>         * @throws IndexOutOfBoundsException if either position is invalid<a name="line.4219"></a>
<FONT color="green">4220</FONT>         * @deprecated Use better named {@link #overlay(String, String, int, int)} instead.<a name="line.4220"></a>
<FONT color="green">4221</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.4221"></a>
<FONT color="green">4222</FONT>         */<a name="line.4222"></a>
<FONT color="green">4223</FONT>        public static String overlayString(String text, String overlay, int start, int end) {<a name="line.4223"></a>
<FONT color="green">4224</FONT>            return new StrBuilder(start + overlay.length() + text.length() - end + 1)<a name="line.4224"></a>
<FONT color="green">4225</FONT>                .append(text.substring(0, start))<a name="line.4225"></a>
<FONT color="green">4226</FONT>                .append(overlay)<a name="line.4226"></a>
<FONT color="green">4227</FONT>                .append(text.substring(end))<a name="line.4227"></a>
<FONT color="green">4228</FONT>                .toString();<a name="line.4228"></a>
<FONT color="green">4229</FONT>        }<a name="line.4229"></a>
<FONT color="green">4230</FONT>    <a name="line.4230"></a>
<FONT color="green">4231</FONT>        /**<a name="line.4231"></a>
<FONT color="green">4232</FONT>         * &lt;p&gt;Overlays part of a String with another String.&lt;/p&gt;<a name="line.4232"></a>
<FONT color="green">4233</FONT>         *<a name="line.4233"></a>
<FONT color="green">4234</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; string input returns &lt;code&gt;null&lt;/code&gt;.<a name="line.4234"></a>
<FONT color="green">4235</FONT>         * A negative index is treated as zero.<a name="line.4235"></a>
<FONT color="green">4236</FONT>         * An index greater than the string length is treated as the string length.<a name="line.4236"></a>
<FONT color="green">4237</FONT>         * The start index is always the smaller of the two indices.&lt;/p&gt;<a name="line.4237"></a>
<FONT color="green">4238</FONT>         *<a name="line.4238"></a>
<FONT color="green">4239</FONT>         * &lt;pre&gt;<a name="line.4239"></a>
<FONT color="green">4240</FONT>         * StringUtils.overlay(null, *, *, *)            = null<a name="line.4240"></a>
<FONT color="green">4241</FONT>         * StringUtils.overlay("", "abc", 0, 0)          = "abc"<a name="line.4241"></a>
<FONT color="green">4242</FONT>         * StringUtils.overlay("abcdef", null, 2, 4)     = "abef"<a name="line.4242"></a>
<FONT color="green">4243</FONT>         * StringUtils.overlay("abcdef", "", 2, 4)       = "abef"<a name="line.4243"></a>
<FONT color="green">4244</FONT>         * StringUtils.overlay("abcdef", "", 4, 2)       = "abef"<a name="line.4244"></a>
<FONT color="green">4245</FONT>         * StringUtils.overlay("abcdef", "zzzz", 2, 4)   = "abzzzzef"<a name="line.4245"></a>
<FONT color="green">4246</FONT>         * StringUtils.overlay("abcdef", "zzzz", 4, 2)   = "abzzzzef"<a name="line.4246"></a>
<FONT color="green">4247</FONT>         * StringUtils.overlay("abcdef", "zzzz", -1, 4)  = "zzzzef"<a name="line.4247"></a>
<FONT color="green">4248</FONT>         * StringUtils.overlay("abcdef", "zzzz", 2, 8)   = "abzzzz"<a name="line.4248"></a>
<FONT color="green">4249</FONT>         * StringUtils.overlay("abcdef", "zzzz", -2, -3) = "zzzzabcdef"<a name="line.4249"></a>
<FONT color="green">4250</FONT>         * StringUtils.overlay("abcdef", "zzzz", 8, 10)  = "abcdefzzzz"<a name="line.4250"></a>
<FONT color="green">4251</FONT>         * &lt;/pre&gt;<a name="line.4251"></a>
<FONT color="green">4252</FONT>         *<a name="line.4252"></a>
<FONT color="green">4253</FONT>         * @param str  the String to do overlaying in, may be null<a name="line.4253"></a>
<FONT color="green">4254</FONT>         * @param overlay  the String to overlay, may be null<a name="line.4254"></a>
<FONT color="green">4255</FONT>         * @param start  the position to start overlaying at<a name="line.4255"></a>
<FONT color="green">4256</FONT>         * @param end  the position to stop overlaying before<a name="line.4256"></a>
<FONT color="green">4257</FONT>         * @return overlayed String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4257"></a>
<FONT color="green">4258</FONT>         * @since 2.0<a name="line.4258"></a>
<FONT color="green">4259</FONT>         */<a name="line.4259"></a>
<FONT color="green">4260</FONT>        public static String overlay(String str, String overlay, int start, int end) {<a name="line.4260"></a>
<FONT color="green">4261</FONT>            if (str == null) {<a name="line.4261"></a>
<FONT color="green">4262</FONT>                return null;<a name="line.4262"></a>
<FONT color="green">4263</FONT>            }<a name="line.4263"></a>
<FONT color="green">4264</FONT>            if (overlay == null) {<a name="line.4264"></a>
<FONT color="green">4265</FONT>                overlay = EMPTY;<a name="line.4265"></a>
<FONT color="green">4266</FONT>            }<a name="line.4266"></a>
<FONT color="green">4267</FONT>            int len = str.length();<a name="line.4267"></a>
<FONT color="green">4268</FONT>            if (start &lt; 0) {<a name="line.4268"></a>
<FONT color="green">4269</FONT>                start = 0;<a name="line.4269"></a>
<FONT color="green">4270</FONT>            }<a name="line.4270"></a>
<FONT color="green">4271</FONT>            if (start &gt; len) {<a name="line.4271"></a>
<FONT color="green">4272</FONT>                start = len;<a name="line.4272"></a>
<FONT color="green">4273</FONT>            }<a name="line.4273"></a>
<FONT color="green">4274</FONT>            if (end &lt; 0) {<a name="line.4274"></a>
<FONT color="green">4275</FONT>                end = 0;<a name="line.4275"></a>
<FONT color="green">4276</FONT>            }<a name="line.4276"></a>
<FONT color="green">4277</FONT>            if (end &gt; len) {<a name="line.4277"></a>
<FONT color="green">4278</FONT>                end = len;<a name="line.4278"></a>
<FONT color="green">4279</FONT>            }<a name="line.4279"></a>
<FONT color="green">4280</FONT>            if (start &gt; end) {<a name="line.4280"></a>
<FONT color="green">4281</FONT>                int temp = start;<a name="line.4281"></a>
<FONT color="green">4282</FONT>                start = end;<a name="line.4282"></a>
<FONT color="green">4283</FONT>                end = temp;<a name="line.4283"></a>
<FONT color="green">4284</FONT>            }<a name="line.4284"></a>
<FONT color="green">4285</FONT>            return new StrBuilder(len + start - end + overlay.length() + 1)<a name="line.4285"></a>
<FONT color="green">4286</FONT>                .append(str.substring(0, start))<a name="line.4286"></a>
<FONT color="green">4287</FONT>                .append(overlay)<a name="line.4287"></a>
<FONT color="green">4288</FONT>                .append(str.substring(end))<a name="line.4288"></a>
<FONT color="green">4289</FONT>                .toString();<a name="line.4289"></a>
<FONT color="green">4290</FONT>        }<a name="line.4290"></a>
<FONT color="green">4291</FONT>    <a name="line.4291"></a>
<FONT color="green">4292</FONT>        // Chomping<a name="line.4292"></a>
<FONT color="green">4293</FONT>        //-----------------------------------------------------------------------<a name="line.4293"></a>
<FONT color="green">4294</FONT>        /**<a name="line.4294"></a>
<FONT color="green">4295</FONT>         * &lt;p&gt;Removes one newline from end of a String if it's there,<a name="line.4295"></a>
<FONT color="green">4296</FONT>         * otherwise leave it alone.  A newline is &amp;quot;&lt;code&gt;\n&lt;/code&gt;&amp;quot;,<a name="line.4296"></a>
<FONT color="green">4297</FONT>         * &amp;quot;&lt;code&gt;\r&lt;/code&gt;&amp;quot;, or &amp;quot;&lt;code&gt;\r\n&lt;/code&gt;&amp;quot;.&lt;/p&gt;<a name="line.4297"></a>
<FONT color="green">4298</FONT>         *<a name="line.4298"></a>
<FONT color="green">4299</FONT>         * &lt;p&gt;NOTE: This method changed in 2.0.<a name="line.4299"></a>
<FONT color="green">4300</FONT>         * It now more closely matches Perl chomp.&lt;/p&gt;<a name="line.4300"></a>
<FONT color="green">4301</FONT>         *<a name="line.4301"></a>
<FONT color="green">4302</FONT>         * &lt;pre&gt;<a name="line.4302"></a>
<FONT color="green">4303</FONT>         * StringUtils.chomp(null)          = null<a name="line.4303"></a>
<FONT color="green">4304</FONT>         * StringUtils.chomp("")            = ""<a name="line.4304"></a>
<FONT color="green">4305</FONT>         * StringUtils.chomp("abc \r")      = "abc "<a name="line.4305"></a>
<FONT color="green">4306</FONT>         * StringUtils.chomp("abc\n")       = "abc"<a name="line.4306"></a>
<FONT color="green">4307</FONT>         * StringUtils.chomp("abc\r\n")     = "abc"<a name="line.4307"></a>
<FONT color="green">4308</FONT>         * StringUtils.chomp("abc\r\n\r\n") = "abc\r\n"<a name="line.4308"></a>
<FONT color="green">4309</FONT>         * StringUtils.chomp("abc\n\r")     = "abc\n"<a name="line.4309"></a>
<FONT color="green">4310</FONT>         * StringUtils.chomp("abc\n\rabc")  = "abc\n\rabc"<a name="line.4310"></a>
<FONT color="green">4311</FONT>         * StringUtils.chomp("\r")          = ""<a name="line.4311"></a>
<FONT color="green">4312</FONT>         * StringUtils.chomp("\n")          = ""<a name="line.4312"></a>
<FONT color="green">4313</FONT>         * StringUtils.chomp("\r\n")        = ""<a name="line.4313"></a>
<FONT color="green">4314</FONT>         * &lt;/pre&gt;<a name="line.4314"></a>
<FONT color="green">4315</FONT>         *<a name="line.4315"></a>
<FONT color="green">4316</FONT>         * @param str  the String to chomp a newline from, may be null<a name="line.4316"></a>
<FONT color="green">4317</FONT>         * @return String without newline, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4317"></a>
<FONT color="green">4318</FONT>         */<a name="line.4318"></a>
<FONT color="green">4319</FONT>        public static String chomp(String str) {<a name="line.4319"></a>
<FONT color="green">4320</FONT>            if (isEmpty(str)) {<a name="line.4320"></a>
<FONT color="green">4321</FONT>                return str;<a name="line.4321"></a>
<FONT color="green">4322</FONT>            }<a name="line.4322"></a>
<FONT color="green">4323</FONT>    <a name="line.4323"></a>
<FONT color="green">4324</FONT>            if (str.length() == 1) {<a name="line.4324"></a>
<FONT color="green">4325</FONT>                char ch = str.charAt(0);<a name="line.4325"></a>
<FONT color="green">4326</FONT>                if (ch == CharUtils.CR || ch == CharUtils.LF) {<a name="line.4326"></a>
<FONT color="green">4327</FONT>                    return EMPTY;<a name="line.4327"></a>
<FONT color="green">4328</FONT>                }<a name="line.4328"></a>
<FONT color="green">4329</FONT>                return str;<a name="line.4329"></a>
<FONT color="green">4330</FONT>            }<a name="line.4330"></a>
<FONT color="green">4331</FONT>    <a name="line.4331"></a>
<FONT color="green">4332</FONT>            int lastIdx = str.length() - 1;<a name="line.4332"></a>
<FONT color="green">4333</FONT>            char last = str.charAt(lastIdx);<a name="line.4333"></a>
<FONT color="green">4334</FONT>    <a name="line.4334"></a>
<FONT color="green">4335</FONT>            if (last == CharUtils.LF) {<a name="line.4335"></a>
<FONT color="green">4336</FONT>                if (str.charAt(lastIdx - 1) == CharUtils.CR) {<a name="line.4336"></a>
<FONT color="green">4337</FONT>                    lastIdx--;<a name="line.4337"></a>
<FONT color="green">4338</FONT>                }<a name="line.4338"></a>
<FONT color="green">4339</FONT>            } else if (last != CharUtils.CR) {<a name="line.4339"></a>
<FONT color="green">4340</FONT>                lastIdx++;<a name="line.4340"></a>
<FONT color="green">4341</FONT>            }<a name="line.4341"></a>
<FONT color="green">4342</FONT>            return str.substring(0, lastIdx);<a name="line.4342"></a>
<FONT color="green">4343</FONT>        }<a name="line.4343"></a>
<FONT color="green">4344</FONT>    <a name="line.4344"></a>
<FONT color="green">4345</FONT>        /**<a name="line.4345"></a>
<FONT color="green">4346</FONT>         * &lt;p&gt;Removes &lt;code&gt;separator&lt;/code&gt; from the end of<a name="line.4346"></a>
<FONT color="green">4347</FONT>         * &lt;code&gt;str&lt;/code&gt; if it's there, otherwise leave it alone.&lt;/p&gt;<a name="line.4347"></a>
<FONT color="green">4348</FONT>         *<a name="line.4348"></a>
<FONT color="green">4349</FONT>         * &lt;p&gt;NOTE: This method changed in version 2.0.<a name="line.4349"></a>
<FONT color="green">4350</FONT>         * It now more closely matches Perl chomp.<a name="line.4350"></a>
<FONT color="green">4351</FONT>         * For the previous behavior, use {@link #substringBeforeLast(String, String)}.<a name="line.4351"></a>
<FONT color="green">4352</FONT>         * This method uses {@link String#endsWith(String)}.&lt;/p&gt;<a name="line.4352"></a>
<FONT color="green">4353</FONT>         *<a name="line.4353"></a>
<FONT color="green">4354</FONT>         * &lt;pre&gt;<a name="line.4354"></a>
<FONT color="green">4355</FONT>         * StringUtils.chomp(null, *)         = null<a name="line.4355"></a>
<FONT color="green">4356</FONT>         * StringUtils.chomp("", *)           = ""<a name="line.4356"></a>
<FONT color="green">4357</FONT>         * StringUtils.chomp("foobar", "bar") = "foo"<a name="line.4357"></a>
<FONT color="green">4358</FONT>         * StringUtils.chomp("foobar", "baz") = "foobar"<a name="line.4358"></a>
<FONT color="green">4359</FONT>         * StringUtils.chomp("foo", "foo")    = ""<a name="line.4359"></a>
<FONT color="green">4360</FONT>         * StringUtils.chomp("foo ", "foo")   = "foo "<a name="line.4360"></a>
<FONT color="green">4361</FONT>         * StringUtils.chomp(" foo", "foo")   = " "<a name="line.4361"></a>
<FONT color="green">4362</FONT>         * StringUtils.chomp("foo", "foooo")  = "foo"<a name="line.4362"></a>
<FONT color="green">4363</FONT>         * StringUtils.chomp("foo", "")       = "foo"<a name="line.4363"></a>
<FONT color="green">4364</FONT>         * StringUtils.chomp("foo", null)     = "foo"<a name="line.4364"></a>
<FONT color="green">4365</FONT>         * &lt;/pre&gt;<a name="line.4365"></a>
<FONT color="green">4366</FONT>         *<a name="line.4366"></a>
<FONT color="green">4367</FONT>         * @param str  the String to chomp from, may be null<a name="line.4367"></a>
<FONT color="green">4368</FONT>         * @param separator  separator String, may be null<a name="line.4368"></a>
<FONT color="green">4369</FONT>         * @return String without trailing separator, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4369"></a>
<FONT color="green">4370</FONT>         */<a name="line.4370"></a>
<FONT color="green">4371</FONT>        public static String chomp(String str, String separator) {<a name="line.4371"></a>
<FONT color="green">4372</FONT>            if (isEmpty(str) || separator == null) {<a name="line.4372"></a>
<FONT color="green">4373</FONT>                return str;<a name="line.4373"></a>
<FONT color="green">4374</FONT>            }<a name="line.4374"></a>
<FONT color="green">4375</FONT>            if (str.endsWith(separator)) {<a name="line.4375"></a>
<FONT color="green">4376</FONT>                return str.substring(0, str.length() - separator.length());<a name="line.4376"></a>
<FONT color="green">4377</FONT>            }<a name="line.4377"></a>
<FONT color="green">4378</FONT>            return str;<a name="line.4378"></a>
<FONT color="green">4379</FONT>        }<a name="line.4379"></a>
<FONT color="green">4380</FONT>    <a name="line.4380"></a>
<FONT color="green">4381</FONT>        /**<a name="line.4381"></a>
<FONT color="green">4382</FONT>         * &lt;p&gt;Remove any &amp;quot;\n&amp;quot; if and only if it is at the end<a name="line.4382"></a>
<FONT color="green">4383</FONT>         * of the supplied String.&lt;/p&gt;<a name="line.4383"></a>
<FONT color="green">4384</FONT>         *<a name="line.4384"></a>
<FONT color="green">4385</FONT>         * @param str  the String to chomp from, must not be null<a name="line.4385"></a>
<FONT color="green">4386</FONT>         * @return String without chomped ending<a name="line.4386"></a>
<FONT color="green">4387</FONT>         * @throws NullPointerException if str is &lt;code&gt;null&lt;/code&gt;<a name="line.4387"></a>
<FONT color="green">4388</FONT>         * @deprecated Use {@link #chomp(String)} instead.<a name="line.4388"></a>
<FONT color="green">4389</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.4389"></a>
<FONT color="green">4390</FONT>         */<a name="line.4390"></a>
<FONT color="green">4391</FONT>        public static String chompLast(String str) {<a name="line.4391"></a>
<FONT color="green">4392</FONT>            return chompLast(str, "\n");<a name="line.4392"></a>
<FONT color="green">4393</FONT>        }<a name="line.4393"></a>
<FONT color="green">4394</FONT>    <a name="line.4394"></a>
<FONT color="green">4395</FONT>        /**<a name="line.4395"></a>
<FONT color="green">4396</FONT>         * &lt;p&gt;Remove a value if and only if the String ends with that value.&lt;/p&gt;<a name="line.4396"></a>
<FONT color="green">4397</FONT>         *<a name="line.4397"></a>
<FONT color="green">4398</FONT>         * @param str  the String to chomp from, must not be null<a name="line.4398"></a>
<FONT color="green">4399</FONT>         * @param sep  the String to chomp, must not be null<a name="line.4399"></a>
<FONT color="green">4400</FONT>         * @return String without chomped ending<a name="line.4400"></a>
<FONT color="green">4401</FONT>         * @throws NullPointerException if str or sep is &lt;code&gt;null&lt;/code&gt;<a name="line.4401"></a>
<FONT color="green">4402</FONT>         * @deprecated Use {@link #chomp(String,String)} instead.<a name="line.4402"></a>
<FONT color="green">4403</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.4403"></a>
<FONT color="green">4404</FONT>         */<a name="line.4404"></a>
<FONT color="green">4405</FONT>        public static String chompLast(String str, String sep) {<a name="line.4405"></a>
<FONT color="green">4406</FONT>            if (str.length() == 0) {<a name="line.4406"></a>
<FONT color="green">4407</FONT>                return str;<a name="line.4407"></a>
<FONT color="green">4408</FONT>            }<a name="line.4408"></a>
<FONT color="green">4409</FONT>            String sub = str.substring(str.length() - sep.length());<a name="line.4409"></a>
<FONT color="green">4410</FONT>            if (sep.equals(sub)) {<a name="line.4410"></a>
<FONT color="green">4411</FONT>                return str.substring(0, str.length() - sep.length());<a name="line.4411"></a>
<FONT color="green">4412</FONT>            }<a name="line.4412"></a>
<FONT color="green">4413</FONT>            return str;<a name="line.4413"></a>
<FONT color="green">4414</FONT>        }<a name="line.4414"></a>
<FONT color="green">4415</FONT>    <a name="line.4415"></a>
<FONT color="green">4416</FONT>        /**<a name="line.4416"></a>
<FONT color="green">4417</FONT>         * &lt;p&gt;Remove everything and return the last value of a supplied String, and<a name="line.4417"></a>
<FONT color="green">4418</FONT>         * everything after it from a String.&lt;/p&gt;<a name="line.4418"></a>
<FONT color="green">4419</FONT>         *<a name="line.4419"></a>
<FONT color="green">4420</FONT>         * @param str  the String to chomp from, must not be null<a name="line.4420"></a>
<FONT color="green">4421</FONT>         * @param sep  the String to chomp, must not be null<a name="line.4421"></a>
<FONT color="green">4422</FONT>         * @return String chomped<a name="line.4422"></a>
<FONT color="green">4423</FONT>         * @throws NullPointerException if str or sep is &lt;code&gt;null&lt;/code&gt;<a name="line.4423"></a>
<FONT color="green">4424</FONT>         * @deprecated Use {@link #substringAfterLast(String, String)} instead<a name="line.4424"></a>
<FONT color="green">4425</FONT>         *             (although this doesn't include the separator)<a name="line.4425"></a>
<FONT color="green">4426</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.4426"></a>
<FONT color="green">4427</FONT>         */<a name="line.4427"></a>
<FONT color="green">4428</FONT>        public static String getChomp(String str, String sep) {<a name="line.4428"></a>
<FONT color="green">4429</FONT>            int idx = str.lastIndexOf(sep);<a name="line.4429"></a>
<FONT color="green">4430</FONT>            if (idx == str.length() - sep.length()) {<a name="line.4430"></a>
<FONT color="green">4431</FONT>                return sep;<a name="line.4431"></a>
<FONT color="green">4432</FONT>            } else if (idx != -1) {<a name="line.4432"></a>
<FONT color="green">4433</FONT>                return str.substring(idx);<a name="line.4433"></a>
<FONT color="green">4434</FONT>            } else {<a name="line.4434"></a>
<FONT color="green">4435</FONT>                return EMPTY;<a name="line.4435"></a>
<FONT color="green">4436</FONT>            }<a name="line.4436"></a>
<FONT color="green">4437</FONT>        }<a name="line.4437"></a>
<FONT color="green">4438</FONT>    <a name="line.4438"></a>
<FONT color="green">4439</FONT>        /**<a name="line.4439"></a>
<FONT color="green">4440</FONT>         * &lt;p&gt;Remove the first value of a supplied String, and everything before it<a name="line.4440"></a>
<FONT color="green">4441</FONT>         * from a String.&lt;/p&gt;<a name="line.4441"></a>
<FONT color="green">4442</FONT>         *<a name="line.4442"></a>
<FONT color="green">4443</FONT>         * @param str  the String to chomp from, must not be null<a name="line.4443"></a>
<FONT color="green">4444</FONT>         * @param sep  the String to chomp, must not be null<a name="line.4444"></a>
<FONT color="green">4445</FONT>         * @return String without chomped beginning<a name="line.4445"></a>
<FONT color="green">4446</FONT>         * @throws NullPointerException if str or sep is &lt;code&gt;null&lt;/code&gt;<a name="line.4446"></a>
<FONT color="green">4447</FONT>         * @deprecated Use {@link #substringAfter(String,String)} instead.<a name="line.4447"></a>
<FONT color="green">4448</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.4448"></a>
<FONT color="green">4449</FONT>         */<a name="line.4449"></a>
<FONT color="green">4450</FONT>        public static String prechomp(String str, String sep) {<a name="line.4450"></a>
<FONT color="green">4451</FONT>            int idx = str.indexOf(sep);<a name="line.4451"></a>
<FONT color="green">4452</FONT>            if (idx == -1) {<a name="line.4452"></a>
<FONT color="green">4453</FONT>                return str;<a name="line.4453"></a>
<FONT color="green">4454</FONT>            }             <a name="line.4454"></a>
<FONT color="green">4455</FONT>            return str.substring(idx + sep.length());<a name="line.4455"></a>
<FONT color="green">4456</FONT>        }<a name="line.4456"></a>
<FONT color="green">4457</FONT>    <a name="line.4457"></a>
<FONT color="green">4458</FONT>        /**<a name="line.4458"></a>
<FONT color="green">4459</FONT>         * &lt;p&gt;Remove and return everything before the first value of a<a name="line.4459"></a>
<FONT color="green">4460</FONT>         * supplied String from another String.&lt;/p&gt;<a name="line.4460"></a>
<FONT color="green">4461</FONT>         *<a name="line.4461"></a>
<FONT color="green">4462</FONT>         * @param str  the String to chomp from, must not be null<a name="line.4462"></a>
<FONT color="green">4463</FONT>         * @param sep  the String to chomp, must not be null<a name="line.4463"></a>
<FONT color="green">4464</FONT>         * @return String prechomped<a name="line.4464"></a>
<FONT color="green">4465</FONT>         * @throws NullPointerException if str or sep is &lt;code&gt;null&lt;/code&gt;<a name="line.4465"></a>
<FONT color="green">4466</FONT>         * @deprecated Use {@link #substringBefore(String,String)} instead<a name="line.4466"></a>
<FONT color="green">4467</FONT>         *             (although this doesn't include the separator).<a name="line.4467"></a>
<FONT color="green">4468</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.4468"></a>
<FONT color="green">4469</FONT>         */<a name="line.4469"></a>
<FONT color="green">4470</FONT>        public static String getPrechomp(String str, String sep) {<a name="line.4470"></a>
<FONT color="green">4471</FONT>            int idx = str.indexOf(sep);<a name="line.4471"></a>
<FONT color="green">4472</FONT>            if (idx == -1) {<a name="line.4472"></a>
<FONT color="green">4473</FONT>                return EMPTY;<a name="line.4473"></a>
<FONT color="green">4474</FONT>            } <a name="line.4474"></a>
<FONT color="green">4475</FONT>            return str.substring(0, idx + sep.length());<a name="line.4475"></a>
<FONT color="green">4476</FONT>        }<a name="line.4476"></a>
<FONT color="green">4477</FONT>    <a name="line.4477"></a>
<FONT color="green">4478</FONT>        // Chopping<a name="line.4478"></a>
<FONT color="green">4479</FONT>        //-----------------------------------------------------------------------<a name="line.4479"></a>
<FONT color="green">4480</FONT>        /**<a name="line.4480"></a>
<FONT color="green">4481</FONT>         * &lt;p&gt;Remove the last character from a String.&lt;/p&gt;<a name="line.4481"></a>
<FONT color="green">4482</FONT>         *<a name="line.4482"></a>
<FONT color="green">4483</FONT>         * &lt;p&gt;If the String ends in &lt;code&gt;\r\n&lt;/code&gt;, then remove both<a name="line.4483"></a>
<FONT color="green">4484</FONT>         * of them.&lt;/p&gt;<a name="line.4484"></a>
<FONT color="green">4485</FONT>         *<a name="line.4485"></a>
<FONT color="green">4486</FONT>         * &lt;pre&gt;<a name="line.4486"></a>
<FONT color="green">4487</FONT>         * StringUtils.chop(null)          = null<a name="line.4487"></a>
<FONT color="green">4488</FONT>         * StringUtils.chop("")            = ""<a name="line.4488"></a>
<FONT color="green">4489</FONT>         * StringUtils.chop("abc \r")      = "abc "<a name="line.4489"></a>
<FONT color="green">4490</FONT>         * StringUtils.chop("abc\n")       = "abc"<a name="line.4490"></a>
<FONT color="green">4491</FONT>         * StringUtils.chop("abc\r\n")     = "abc"<a name="line.4491"></a>
<FONT color="green">4492</FONT>         * StringUtils.chop("abc")         = "ab"<a name="line.4492"></a>
<FONT color="green">4493</FONT>         * StringUtils.chop("abc\nabc")    = "abc\nab"<a name="line.4493"></a>
<FONT color="green">4494</FONT>         * StringUtils.chop("a")           = ""<a name="line.4494"></a>
<FONT color="green">4495</FONT>         * StringUtils.chop("\r")          = ""<a name="line.4495"></a>
<FONT color="green">4496</FONT>         * StringUtils.chop("\n")          = ""<a name="line.4496"></a>
<FONT color="green">4497</FONT>         * StringUtils.chop("\r\n")        = ""<a name="line.4497"></a>
<FONT color="green">4498</FONT>         * &lt;/pre&gt;<a name="line.4498"></a>
<FONT color="green">4499</FONT>         *<a name="line.4499"></a>
<FONT color="green">4500</FONT>         * @param str  the String to chop last character from, may be null<a name="line.4500"></a>
<FONT color="green">4501</FONT>         * @return String without last character, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4501"></a>
<FONT color="green">4502</FONT>         */<a name="line.4502"></a>
<FONT color="green">4503</FONT>        public static String chop(String str) {<a name="line.4503"></a>
<FONT color="green">4504</FONT>            if (str == null) {<a name="line.4504"></a>
<FONT color="green">4505</FONT>                return null;<a name="line.4505"></a>
<FONT color="green">4506</FONT>            }<a name="line.4506"></a>
<FONT color="green">4507</FONT>            int strLen = str.length();<a name="line.4507"></a>
<FONT color="green">4508</FONT>            if (strLen &lt; 2) {<a name="line.4508"></a>
<FONT color="green">4509</FONT>                return EMPTY;<a name="line.4509"></a>
<FONT color="green">4510</FONT>            }<a name="line.4510"></a>
<FONT color="green">4511</FONT>            int lastIdx = strLen - 1;<a name="line.4511"></a>
<FONT color="green">4512</FONT>            String ret = str.substring(0, lastIdx);<a name="line.4512"></a>
<FONT color="green">4513</FONT>            char last = str.charAt(lastIdx);<a name="line.4513"></a>
<FONT color="green">4514</FONT>            if (last == CharUtils.LF) {<a name="line.4514"></a>
<FONT color="green">4515</FONT>                if (ret.charAt(lastIdx - 1) == CharUtils.CR) {<a name="line.4515"></a>
<FONT color="green">4516</FONT>                    return ret.substring(0, lastIdx - 1);<a name="line.4516"></a>
<FONT color="green">4517</FONT>                }<a name="line.4517"></a>
<FONT color="green">4518</FONT>            }<a name="line.4518"></a>
<FONT color="green">4519</FONT>            return ret;<a name="line.4519"></a>
<FONT color="green">4520</FONT>        }<a name="line.4520"></a>
<FONT color="green">4521</FONT>    <a name="line.4521"></a>
<FONT color="green">4522</FONT>        /**<a name="line.4522"></a>
<FONT color="green">4523</FONT>         * &lt;p&gt;Removes &lt;code&gt;\n&lt;/code&gt; from end of a String if it's there.<a name="line.4523"></a>
<FONT color="green">4524</FONT>         * If a &lt;code&gt;\r&lt;/code&gt; precedes it, then remove that too.&lt;/p&gt;<a name="line.4524"></a>
<FONT color="green">4525</FONT>         *<a name="line.4525"></a>
<FONT color="green">4526</FONT>         * @param str  the String to chop a newline from, must not be null<a name="line.4526"></a>
<FONT color="green">4527</FONT>         * @return String without newline<a name="line.4527"></a>
<FONT color="green">4528</FONT>         * @throws NullPointerException if str is &lt;code&gt;null&lt;/code&gt;<a name="line.4528"></a>
<FONT color="green">4529</FONT>         * @deprecated Use {@link #chomp(String)} instead.<a name="line.4529"></a>
<FONT color="green">4530</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.4530"></a>
<FONT color="green">4531</FONT>         */<a name="line.4531"></a>
<FONT color="green">4532</FONT>        public static String chopNewline(String str) {<a name="line.4532"></a>
<FONT color="green">4533</FONT>            int lastIdx = str.length() - 1;<a name="line.4533"></a>
<FONT color="green">4534</FONT>            if (lastIdx &lt;= 0) {<a name="line.4534"></a>
<FONT color="green">4535</FONT>                return EMPTY;<a name="line.4535"></a>
<FONT color="green">4536</FONT>            }<a name="line.4536"></a>
<FONT color="green">4537</FONT>            char last = str.charAt(lastIdx);<a name="line.4537"></a>
<FONT color="green">4538</FONT>            if (last == CharUtils.LF) {<a name="line.4538"></a>
<FONT color="green">4539</FONT>                if (str.charAt(lastIdx - 1) == CharUtils.CR) {<a name="line.4539"></a>
<FONT color="green">4540</FONT>                    lastIdx--;<a name="line.4540"></a>
<FONT color="green">4541</FONT>                }<a name="line.4541"></a>
<FONT color="green">4542</FONT>            } else {<a name="line.4542"></a>
<FONT color="green">4543</FONT>                lastIdx++;<a name="line.4543"></a>
<FONT color="green">4544</FONT>            }<a name="line.4544"></a>
<FONT color="green">4545</FONT>            return str.substring(0, lastIdx);<a name="line.4545"></a>
<FONT color="green">4546</FONT>        }<a name="line.4546"></a>
<FONT color="green">4547</FONT>    <a name="line.4547"></a>
<FONT color="green">4548</FONT>        // Conversion<a name="line.4548"></a>
<FONT color="green">4549</FONT>        //-----------------------------------------------------------------------<a name="line.4549"></a>
<FONT color="green">4550</FONT>        /**<a name="line.4550"></a>
<FONT color="green">4551</FONT>         * &lt;p&gt;Escapes any values it finds into their String form.&lt;/p&gt;<a name="line.4551"></a>
<FONT color="green">4552</FONT>         *<a name="line.4552"></a>
<FONT color="green">4553</FONT>         * &lt;p&gt;So a tab becomes the characters &lt;code&gt;'\\'&lt;/code&gt; and<a name="line.4553"></a>
<FONT color="green">4554</FONT>         * &lt;code&gt;'t'&lt;/code&gt;.&lt;/p&gt;<a name="line.4554"></a>
<FONT color="green">4555</FONT>         *<a name="line.4555"></a>
<FONT color="green">4556</FONT>         * &lt;p&gt;As of Lang 2.0, this calls {@link StringEscapeUtils#escapeJava(String)}<a name="line.4556"></a>
<FONT color="green">4557</FONT>         * behind the scenes.<a name="line.4557"></a>
<FONT color="green">4558</FONT>         * &lt;/p&gt;<a name="line.4558"></a>
<FONT color="green">4559</FONT>         * @see StringEscapeUtils#escapeJava(java.lang.String)<a name="line.4559"></a>
<FONT color="green">4560</FONT>         * @param str String to escape values in<a name="line.4560"></a>
<FONT color="green">4561</FONT>         * @return String with escaped values<a name="line.4561"></a>
<FONT color="green">4562</FONT>         * @throws NullPointerException if str is &lt;code&gt;null&lt;/code&gt;<a name="line.4562"></a>
<FONT color="green">4563</FONT>         * @deprecated Use {@link StringEscapeUtils#escapeJava(String)}<a name="line.4563"></a>
<FONT color="green">4564</FONT>         *             This method will be removed in Commons Lang 3.0<a name="line.4564"></a>
<FONT color="green">4565</FONT>         */<a name="line.4565"></a>
<FONT color="green">4566</FONT>        public static String escape(String str) {<a name="line.4566"></a>
<FONT color="green">4567</FONT>            return StringEscapeUtils.escapeJava(str);<a name="line.4567"></a>
<FONT color="green">4568</FONT>        }<a name="line.4568"></a>
<FONT color="green">4569</FONT>    <a name="line.4569"></a>
<FONT color="green">4570</FONT>        // Padding<a name="line.4570"></a>
<FONT color="green">4571</FONT>        //-----------------------------------------------------------------------<a name="line.4571"></a>
<FONT color="green">4572</FONT>        /**<a name="line.4572"></a>
<FONT color="green">4573</FONT>         * &lt;p&gt;Repeat a String &lt;code&gt;repeat&lt;/code&gt; times to form a<a name="line.4573"></a>
<FONT color="green">4574</FONT>         * new String.&lt;/p&gt;<a name="line.4574"></a>
<FONT color="green">4575</FONT>         *<a name="line.4575"></a>
<FONT color="green">4576</FONT>         * &lt;pre&gt;<a name="line.4576"></a>
<FONT color="green">4577</FONT>         * StringUtils.repeat(null, 2) = null<a name="line.4577"></a>
<FONT color="green">4578</FONT>         * StringUtils.repeat("", 0)   = ""<a name="line.4578"></a>
<FONT color="green">4579</FONT>         * StringUtils.repeat("", 2)   = ""<a name="line.4579"></a>
<FONT color="green">4580</FONT>         * StringUtils.repeat("a", 3)  = "aaa"<a name="line.4580"></a>
<FONT color="green">4581</FONT>         * StringUtils.repeat("ab", 2) = "abab"<a name="line.4581"></a>
<FONT color="green">4582</FONT>         * StringUtils.repeat("a", -2) = ""<a name="line.4582"></a>
<FONT color="green">4583</FONT>         * &lt;/pre&gt;<a name="line.4583"></a>
<FONT color="green">4584</FONT>         *<a name="line.4584"></a>
<FONT color="green">4585</FONT>         * @param str  the String to repeat, may be null<a name="line.4585"></a>
<FONT color="green">4586</FONT>         * @param repeat  number of times to repeat str, negative treated as zero<a name="line.4586"></a>
<FONT color="green">4587</FONT>         * @return a new String consisting of the original String repeated,<a name="line.4587"></a>
<FONT color="green">4588</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4588"></a>
<FONT color="green">4589</FONT>         */<a name="line.4589"></a>
<FONT color="green">4590</FONT>        public static String repeat(String str, int repeat) {<a name="line.4590"></a>
<FONT color="green">4591</FONT>            // Performance tuned for 2.0 (JDK1.4)<a name="line.4591"></a>
<FONT color="green">4592</FONT>    <a name="line.4592"></a>
<FONT color="green">4593</FONT>            if (str == null) {<a name="line.4593"></a>
<FONT color="green">4594</FONT>                return null;<a name="line.4594"></a>
<FONT color="green">4595</FONT>            }<a name="line.4595"></a>
<FONT color="green">4596</FONT>            if (repeat &lt;= 0) {<a name="line.4596"></a>
<FONT color="green">4597</FONT>                return EMPTY;<a name="line.4597"></a>
<FONT color="green">4598</FONT>            }<a name="line.4598"></a>
<FONT color="green">4599</FONT>            int inputLength = str.length();<a name="line.4599"></a>
<FONT color="green">4600</FONT>            if (repeat == 1 || inputLength == 0) {<a name="line.4600"></a>
<FONT color="green">4601</FONT>                return str;<a name="line.4601"></a>
<FONT color="green">4602</FONT>            }<a name="line.4602"></a>
<FONT color="green">4603</FONT>            if (inputLength == 1 &amp;&amp; repeat &lt;= PAD_LIMIT) {<a name="line.4603"></a>
<FONT color="green">4604</FONT>                return padding(repeat, str.charAt(0));<a name="line.4604"></a>
<FONT color="green">4605</FONT>            }<a name="line.4605"></a>
<FONT color="green">4606</FONT>    <a name="line.4606"></a>
<FONT color="green">4607</FONT>            int outputLength = inputLength * repeat;<a name="line.4607"></a>
<FONT color="green">4608</FONT>            switch (inputLength) {<a name="line.4608"></a>
<FONT color="green">4609</FONT>                case 1 :<a name="line.4609"></a>
<FONT color="green">4610</FONT>                    char ch = str.charAt(0);<a name="line.4610"></a>
<FONT color="green">4611</FONT>                    char[] output1 = new char[outputLength];<a name="line.4611"></a>
<FONT color="green">4612</FONT>                    for (int i = repeat - 1; i &gt;= 0; i--) {<a name="line.4612"></a>
<FONT color="green">4613</FONT>                        output1[i] = ch;<a name="line.4613"></a>
<FONT color="green">4614</FONT>                    }<a name="line.4614"></a>
<FONT color="green">4615</FONT>                    return new String(output1);<a name="line.4615"></a>
<FONT color="green">4616</FONT>                case 2 :<a name="line.4616"></a>
<FONT color="green">4617</FONT>                    char ch0 = str.charAt(0);<a name="line.4617"></a>
<FONT color="green">4618</FONT>                    char ch1 = str.charAt(1);<a name="line.4618"></a>
<FONT color="green">4619</FONT>                    char[] output2 = new char[outputLength];<a name="line.4619"></a>
<FONT color="green">4620</FONT>                    for (int i = repeat * 2 - 2; i &gt;= 0; i--, i--) {<a name="line.4620"></a>
<FONT color="green">4621</FONT>                        output2[i] = ch0;<a name="line.4621"></a>
<FONT color="green">4622</FONT>                        output2[i + 1] = ch1;<a name="line.4622"></a>
<FONT color="green">4623</FONT>                    }<a name="line.4623"></a>
<FONT color="green">4624</FONT>                    return new String(output2);<a name="line.4624"></a>
<FONT color="green">4625</FONT>                default :<a name="line.4625"></a>
<FONT color="green">4626</FONT>                    StrBuilder buf = new StrBuilder(outputLength);<a name="line.4626"></a>
<FONT color="green">4627</FONT>                    for (int i = 0; i &lt; repeat; i++) {<a name="line.4627"></a>
<FONT color="green">4628</FONT>                        buf.append(str);<a name="line.4628"></a>
<FONT color="green">4629</FONT>                    }<a name="line.4629"></a>
<FONT color="green">4630</FONT>                    return buf.toString();<a name="line.4630"></a>
<FONT color="green">4631</FONT>            }<a name="line.4631"></a>
<FONT color="green">4632</FONT>        }<a name="line.4632"></a>
<FONT color="green">4633</FONT>    <a name="line.4633"></a>
<FONT color="green">4634</FONT>        /**<a name="line.4634"></a>
<FONT color="green">4635</FONT>         * &lt;p&gt;Repeat a String &lt;code&gt;repeat&lt;/code&gt; times to form a<a name="line.4635"></a>
<FONT color="green">4636</FONT>         * new String, with a String separator injected each time. &lt;/p&gt;<a name="line.4636"></a>
<FONT color="green">4637</FONT>         *<a name="line.4637"></a>
<FONT color="green">4638</FONT>         * &lt;pre&gt;<a name="line.4638"></a>
<FONT color="green">4639</FONT>         * StringUtils.repeat(null, null, 2) = null<a name="line.4639"></a>
<FONT color="green">4640</FONT>         * StringUtils.repeat(null, "x", 2)  = null<a name="line.4640"></a>
<FONT color="green">4641</FONT>         * StringUtils.repeat("", null, 0)   = ""<a name="line.4641"></a>
<FONT color="green">4642</FONT>         * StringUtils.repeat("", "", 2)     = ""<a name="line.4642"></a>
<FONT color="green">4643</FONT>         * StringUtils.repeat("", "x", 3)    = "xxx"<a name="line.4643"></a>
<FONT color="green">4644</FONT>         * StringUtils.repeat("?", ", ", 3)  = "?, ?, ?"<a name="line.4644"></a>
<FONT color="green">4645</FONT>         * &lt;/pre&gt;<a name="line.4645"></a>
<FONT color="green">4646</FONT>         *<a name="line.4646"></a>
<FONT color="green">4647</FONT>         * @param str        the String to repeat, may be null<a name="line.4647"></a>
<FONT color="green">4648</FONT>         * @param separator  the String to inject, may be null<a name="line.4648"></a>
<FONT color="green">4649</FONT>         * @param repeat     number of times to repeat str, negative treated as zero<a name="line.4649"></a>
<FONT color="green">4650</FONT>         * @return a new String consisting of the original String repeated,<a name="line.4650"></a>
<FONT color="green">4651</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4651"></a>
<FONT color="green">4652</FONT>         * @since 2.5<a name="line.4652"></a>
<FONT color="green">4653</FONT>         */<a name="line.4653"></a>
<FONT color="green">4654</FONT>        public static String repeat(String str, String separator, int repeat) {<a name="line.4654"></a>
<FONT color="green">4655</FONT>            if(str == null || separator == null) {<a name="line.4655"></a>
<FONT color="green">4656</FONT>                return repeat(str, repeat);<a name="line.4656"></a>
<FONT color="green">4657</FONT>            } else {<a name="line.4657"></a>
<FONT color="green">4658</FONT>                // given that repeat(String, int) is quite optimized, better to rely on it than try and splice this into it<a name="line.4658"></a>
<FONT color="green">4659</FONT>                String result = repeat(str + separator, repeat);<a name="line.4659"></a>
<FONT color="green">4660</FONT>                return removeEnd(result, separator);<a name="line.4660"></a>
<FONT color="green">4661</FONT>            }<a name="line.4661"></a>
<FONT color="green">4662</FONT>        }<a name="line.4662"></a>
<FONT color="green">4663</FONT>    <a name="line.4663"></a>
<FONT color="green">4664</FONT>        /**<a name="line.4664"></a>
<FONT color="green">4665</FONT>         * &lt;p&gt;Returns padding using the specified delimiter repeated<a name="line.4665"></a>
<FONT color="green">4666</FONT>         * to a given length.&lt;/p&gt;<a name="line.4666"></a>
<FONT color="green">4667</FONT>         *<a name="line.4667"></a>
<FONT color="green">4668</FONT>         * &lt;pre&gt;<a name="line.4668"></a>
<FONT color="green">4669</FONT>         * StringUtils.padding(0, 'e')  = ""<a name="line.4669"></a>
<FONT color="green">4670</FONT>         * StringUtils.padding(3, 'e')  = "eee"<a name="line.4670"></a>
<FONT color="green">4671</FONT>         * StringUtils.padding(-2, 'e') = IndexOutOfBoundsException<a name="line.4671"></a>
<FONT color="green">4672</FONT>         * &lt;/pre&gt;<a name="line.4672"></a>
<FONT color="green">4673</FONT>         *<a name="line.4673"></a>
<FONT color="green">4674</FONT>         * &lt;p&gt;Note: this method doesn't not support padding with<a name="line.4674"></a>
<FONT color="green">4675</FONT>         * &lt;a href="http://www.unicode.org/glossary/#supplementary_character"&gt;Unicode Supplementary Characters&lt;/a&gt;<a name="line.4675"></a>
<FONT color="green">4676</FONT>         * as they require a pair of &lt;code&gt;char&lt;/code&gt;s to be represented.<a name="line.4676"></a>
<FONT color="green">4677</FONT>         * If you are needing to support full I18N of your applications<a name="line.4677"></a>
<FONT color="green">4678</FONT>         * consider using {@link #repeat(String, int)} instead. <a name="line.4678"></a>
<FONT color="green">4679</FONT>         * &lt;/p&gt;<a name="line.4679"></a>
<FONT color="green">4680</FONT>         *<a name="line.4680"></a>
<FONT color="green">4681</FONT>         * @param repeat  number of times to repeat delim<a name="line.4681"></a>
<FONT color="green">4682</FONT>         * @param padChar  character to repeat<a name="line.4682"></a>
<FONT color="green">4683</FONT>         * @return String with repeated character<a name="line.4683"></a>
<FONT color="green">4684</FONT>         * @throws IndexOutOfBoundsException if &lt;code&gt;repeat &amp;lt; 0&lt;/code&gt;<a name="line.4684"></a>
<FONT color="green">4685</FONT>         * @see #repeat(String, int)<a name="line.4685"></a>
<FONT color="green">4686</FONT>         */<a name="line.4686"></a>
<FONT color="green">4687</FONT>        private static String padding(int repeat, char padChar) throws IndexOutOfBoundsException {<a name="line.4687"></a>
<FONT color="green">4688</FONT>            if (repeat &lt; 0) {<a name="line.4688"></a>
<FONT color="green">4689</FONT>                throw new IndexOutOfBoundsException("Cannot pad a negative amount: " + repeat);<a name="line.4689"></a>
<FONT color="green">4690</FONT>            }<a name="line.4690"></a>
<FONT color="green">4691</FONT>            final char[] buf = new char[repeat];<a name="line.4691"></a>
<FONT color="green">4692</FONT>            for (int i = 0; i &lt; buf.length; i++) {<a name="line.4692"></a>
<FONT color="green">4693</FONT>                buf[i] = padChar;<a name="line.4693"></a>
<FONT color="green">4694</FONT>            }<a name="line.4694"></a>
<FONT color="green">4695</FONT>            return new String(buf);<a name="line.4695"></a>
<FONT color="green">4696</FONT>        }<a name="line.4696"></a>
<FONT color="green">4697</FONT>    <a name="line.4697"></a>
<FONT color="green">4698</FONT>        /**<a name="line.4698"></a>
<FONT color="green">4699</FONT>         * &lt;p&gt;Right pad a String with spaces (' ').&lt;/p&gt;<a name="line.4699"></a>
<FONT color="green">4700</FONT>         *<a name="line.4700"></a>
<FONT color="green">4701</FONT>         * &lt;p&gt;The String is padded to the size of &lt;code&gt;size&lt;/code&gt;.&lt;/p&gt;<a name="line.4701"></a>
<FONT color="green">4702</FONT>         *<a name="line.4702"></a>
<FONT color="green">4703</FONT>         * &lt;pre&gt;<a name="line.4703"></a>
<FONT color="green">4704</FONT>         * StringUtils.rightPad(null, *)   = null<a name="line.4704"></a>
<FONT color="green">4705</FONT>         * StringUtils.rightPad("", 3)     = "   "<a name="line.4705"></a>
<FONT color="green">4706</FONT>         * StringUtils.rightPad("bat", 3)  = "bat"<a name="line.4706"></a>
<FONT color="green">4707</FONT>         * StringUtils.rightPad("bat", 5)  = "bat  "<a name="line.4707"></a>
<FONT color="green">4708</FONT>         * StringUtils.rightPad("bat", 1)  = "bat"<a name="line.4708"></a>
<FONT color="green">4709</FONT>         * StringUtils.rightPad("bat", -1) = "bat"<a name="line.4709"></a>
<FONT color="green">4710</FONT>         * &lt;/pre&gt;<a name="line.4710"></a>
<FONT color="green">4711</FONT>         *<a name="line.4711"></a>
<FONT color="green">4712</FONT>         * @param str  the String to pad out, may be null<a name="line.4712"></a>
<FONT color="green">4713</FONT>         * @param size  the size to pad to<a name="line.4713"></a>
<FONT color="green">4714</FONT>         * @return right padded String or original String if no padding is necessary,<a name="line.4714"></a>
<FONT color="green">4715</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4715"></a>
<FONT color="green">4716</FONT>         */<a name="line.4716"></a>
<FONT color="green">4717</FONT>        public static String rightPad(String str, int size) {<a name="line.4717"></a>
<FONT color="green">4718</FONT>            return rightPad(str, size, ' ');<a name="line.4718"></a>
<FONT color="green">4719</FONT>        }<a name="line.4719"></a>
<FONT color="green">4720</FONT>    <a name="line.4720"></a>
<FONT color="green">4721</FONT>        /**<a name="line.4721"></a>
<FONT color="green">4722</FONT>         * &lt;p&gt;Right pad a String with a specified character.&lt;/p&gt;<a name="line.4722"></a>
<FONT color="green">4723</FONT>         *<a name="line.4723"></a>
<FONT color="green">4724</FONT>         * &lt;p&gt;The String is padded to the size of &lt;code&gt;size&lt;/code&gt;.&lt;/p&gt;<a name="line.4724"></a>
<FONT color="green">4725</FONT>         *<a name="line.4725"></a>
<FONT color="green">4726</FONT>         * &lt;pre&gt;<a name="line.4726"></a>
<FONT color="green">4727</FONT>         * StringUtils.rightPad(null, *, *)     = null<a name="line.4727"></a>
<FONT color="green">4728</FONT>         * StringUtils.rightPad("", 3, 'z')     = "zzz"<a name="line.4728"></a>
<FONT color="green">4729</FONT>         * StringUtils.rightPad("bat", 3, 'z')  = "bat"<a name="line.4729"></a>
<FONT color="green">4730</FONT>         * StringUtils.rightPad("bat", 5, 'z')  = "batzz"<a name="line.4730"></a>
<FONT color="green">4731</FONT>         * StringUtils.rightPad("bat", 1, 'z')  = "bat"<a name="line.4731"></a>
<FONT color="green">4732</FONT>         * StringUtils.rightPad("bat", -1, 'z') = "bat"<a name="line.4732"></a>
<FONT color="green">4733</FONT>         * &lt;/pre&gt;<a name="line.4733"></a>
<FONT color="green">4734</FONT>         *<a name="line.4734"></a>
<FONT color="green">4735</FONT>         * @param str  the String to pad out, may be null<a name="line.4735"></a>
<FONT color="green">4736</FONT>         * @param size  the size to pad to<a name="line.4736"></a>
<FONT color="green">4737</FONT>         * @param padChar  the character to pad with<a name="line.4737"></a>
<FONT color="green">4738</FONT>         * @return right padded String or original String if no padding is necessary,<a name="line.4738"></a>
<FONT color="green">4739</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4739"></a>
<FONT color="green">4740</FONT>         * @since 2.0<a name="line.4740"></a>
<FONT color="green">4741</FONT>         */<a name="line.4741"></a>
<FONT color="green">4742</FONT>        public static String rightPad(String str, int size, char padChar) {<a name="line.4742"></a>
<FONT color="green">4743</FONT>            if (str == null) {<a name="line.4743"></a>
<FONT color="green">4744</FONT>                return null;<a name="line.4744"></a>
<FONT color="green">4745</FONT>            }<a name="line.4745"></a>
<FONT color="green">4746</FONT>            int pads = size - str.length();<a name="line.4746"></a>
<FONT color="green">4747</FONT>            if (pads &lt;= 0) {<a name="line.4747"></a>
<FONT color="green">4748</FONT>                return str; // returns original String when possible<a name="line.4748"></a>
<FONT color="green">4749</FONT>            }<a name="line.4749"></a>
<FONT color="green">4750</FONT>            if (pads &gt; PAD_LIMIT) {<a name="line.4750"></a>
<FONT color="green">4751</FONT>                return rightPad(str, size, String.valueOf(padChar));<a name="line.4751"></a>
<FONT color="green">4752</FONT>            }<a name="line.4752"></a>
<FONT color="green">4753</FONT>            return str.concat(padding(pads, padChar));<a name="line.4753"></a>
<FONT color="green">4754</FONT>        }<a name="line.4754"></a>
<FONT color="green">4755</FONT>    <a name="line.4755"></a>
<FONT color="green">4756</FONT>        /**<a name="line.4756"></a>
<FONT color="green">4757</FONT>         * &lt;p&gt;Right pad a String with a specified String.&lt;/p&gt;<a name="line.4757"></a>
<FONT color="green">4758</FONT>         *<a name="line.4758"></a>
<FONT color="green">4759</FONT>         * &lt;p&gt;The String is padded to the size of &lt;code&gt;size&lt;/code&gt;.&lt;/p&gt;<a name="line.4759"></a>
<FONT color="green">4760</FONT>         *<a name="line.4760"></a>
<FONT color="green">4761</FONT>         * &lt;pre&gt;<a name="line.4761"></a>
<FONT color="green">4762</FONT>         * StringUtils.rightPad(null, *, *)      = null<a name="line.4762"></a>
<FONT color="green">4763</FONT>         * StringUtils.rightPad("", 3, "z")      = "zzz"<a name="line.4763"></a>
<FONT color="green">4764</FONT>         * StringUtils.rightPad("bat", 3, "yz")  = "bat"<a name="line.4764"></a>
<FONT color="green">4765</FONT>         * StringUtils.rightPad("bat", 5, "yz")  = "batyz"<a name="line.4765"></a>
<FONT color="green">4766</FONT>         * StringUtils.rightPad("bat", 8, "yz")  = "batyzyzy"<a name="line.4766"></a>
<FONT color="green">4767</FONT>         * StringUtils.rightPad("bat", 1, "yz")  = "bat"<a name="line.4767"></a>
<FONT color="green">4768</FONT>         * StringUtils.rightPad("bat", -1, "yz") = "bat"<a name="line.4768"></a>
<FONT color="green">4769</FONT>         * StringUtils.rightPad("bat", 5, null)  = "bat  "<a name="line.4769"></a>
<FONT color="green">4770</FONT>         * StringUtils.rightPad("bat", 5, "")    = "bat  "<a name="line.4770"></a>
<FONT color="green">4771</FONT>         * &lt;/pre&gt;<a name="line.4771"></a>
<FONT color="green">4772</FONT>         *<a name="line.4772"></a>
<FONT color="green">4773</FONT>         * @param str  the String to pad out, may be null<a name="line.4773"></a>
<FONT color="green">4774</FONT>         * @param size  the size to pad to<a name="line.4774"></a>
<FONT color="green">4775</FONT>         * @param padStr  the String to pad with, null or empty treated as single space<a name="line.4775"></a>
<FONT color="green">4776</FONT>         * @return right padded String or original String if no padding is necessary,<a name="line.4776"></a>
<FONT color="green">4777</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4777"></a>
<FONT color="green">4778</FONT>         */<a name="line.4778"></a>
<FONT color="green">4779</FONT>        public static String rightPad(String str, int size, String padStr) {<a name="line.4779"></a>
<FONT color="green">4780</FONT>            if (str == null) {<a name="line.4780"></a>
<FONT color="green">4781</FONT>                return null;<a name="line.4781"></a>
<FONT color="green">4782</FONT>            }<a name="line.4782"></a>
<FONT color="green">4783</FONT>            if (isEmpty(padStr)) {<a name="line.4783"></a>
<FONT color="green">4784</FONT>                padStr = " ";<a name="line.4784"></a>
<FONT color="green">4785</FONT>            }<a name="line.4785"></a>
<FONT color="green">4786</FONT>            int padLen = padStr.length();<a name="line.4786"></a>
<FONT color="green">4787</FONT>            int strLen = str.length();<a name="line.4787"></a>
<FONT color="green">4788</FONT>            int pads = size - strLen;<a name="line.4788"></a>
<FONT color="green">4789</FONT>            if (pads &lt;= 0) {<a name="line.4789"></a>
<FONT color="green">4790</FONT>                return str; // returns original String when possible<a name="line.4790"></a>
<FONT color="green">4791</FONT>            }<a name="line.4791"></a>
<FONT color="green">4792</FONT>            if (padLen == 1 &amp;&amp; pads &lt;= PAD_LIMIT) {<a name="line.4792"></a>
<FONT color="green">4793</FONT>                return rightPad(str, size, padStr.charAt(0));<a name="line.4793"></a>
<FONT color="green">4794</FONT>            }<a name="line.4794"></a>
<FONT color="green">4795</FONT>    <a name="line.4795"></a>
<FONT color="green">4796</FONT>            if (pads == padLen) {<a name="line.4796"></a>
<FONT color="green">4797</FONT>                return str.concat(padStr);<a name="line.4797"></a>
<FONT color="green">4798</FONT>            } else if (pads &lt; padLen) {<a name="line.4798"></a>
<FONT color="green">4799</FONT>                return str.concat(padStr.substring(0, pads));<a name="line.4799"></a>
<FONT color="green">4800</FONT>            } else {<a name="line.4800"></a>
<FONT color="green">4801</FONT>                char[] padding = new char[pads];<a name="line.4801"></a>
<FONT color="green">4802</FONT>                char[] padChars = padStr.toCharArray();<a name="line.4802"></a>
<FONT color="green">4803</FONT>                for (int i = 0; i &lt; pads; i++) {<a name="line.4803"></a>
<FONT color="green">4804</FONT>                    padding[i] = padChars[i % padLen];<a name="line.4804"></a>
<FONT color="green">4805</FONT>                }<a name="line.4805"></a>
<FONT color="green">4806</FONT>                return str.concat(new String(padding));<a name="line.4806"></a>
<FONT color="green">4807</FONT>            }<a name="line.4807"></a>
<FONT color="green">4808</FONT>        }<a name="line.4808"></a>
<FONT color="green">4809</FONT>    <a name="line.4809"></a>
<FONT color="green">4810</FONT>        /**<a name="line.4810"></a>
<FONT color="green">4811</FONT>         * &lt;p&gt;Left pad a String with spaces (' ').&lt;/p&gt;<a name="line.4811"></a>
<FONT color="green">4812</FONT>         *<a name="line.4812"></a>
<FONT color="green">4813</FONT>         * &lt;p&gt;The String is padded to the size of &lt;code&gt;size&lt;/code&gt;.&lt;/p&gt;<a name="line.4813"></a>
<FONT color="green">4814</FONT>         *<a name="line.4814"></a>
<FONT color="green">4815</FONT>         * &lt;pre&gt;<a name="line.4815"></a>
<FONT color="green">4816</FONT>         * StringUtils.leftPad(null, *)   = null<a name="line.4816"></a>
<FONT color="green">4817</FONT>         * StringUtils.leftPad("", 3)     = "   "<a name="line.4817"></a>
<FONT color="green">4818</FONT>         * StringUtils.leftPad("bat", 3)  = "bat"<a name="line.4818"></a>
<FONT color="green">4819</FONT>         * StringUtils.leftPad("bat", 5)  = "  bat"<a name="line.4819"></a>
<FONT color="green">4820</FONT>         * StringUtils.leftPad("bat", 1)  = "bat"<a name="line.4820"></a>
<FONT color="green">4821</FONT>         * StringUtils.leftPad("bat", -1) = "bat"<a name="line.4821"></a>
<FONT color="green">4822</FONT>         * &lt;/pre&gt;<a name="line.4822"></a>
<FONT color="green">4823</FONT>         *<a name="line.4823"></a>
<FONT color="green">4824</FONT>         * @param str  the String to pad out, may be null<a name="line.4824"></a>
<FONT color="green">4825</FONT>         * @param size  the size to pad to<a name="line.4825"></a>
<FONT color="green">4826</FONT>         * @return left padded String or original String if no padding is necessary,<a name="line.4826"></a>
<FONT color="green">4827</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4827"></a>
<FONT color="green">4828</FONT>         */<a name="line.4828"></a>
<FONT color="green">4829</FONT>        public static String leftPad(String str, int size) {<a name="line.4829"></a>
<FONT color="green">4830</FONT>            return leftPad(str, size, ' ');<a name="line.4830"></a>
<FONT color="green">4831</FONT>        }<a name="line.4831"></a>
<FONT color="green">4832</FONT>    <a name="line.4832"></a>
<FONT color="green">4833</FONT>        /**<a name="line.4833"></a>
<FONT color="green">4834</FONT>         * &lt;p&gt;Left pad a String with a specified character.&lt;/p&gt;<a name="line.4834"></a>
<FONT color="green">4835</FONT>         *<a name="line.4835"></a>
<FONT color="green">4836</FONT>         * &lt;p&gt;Pad to a size of &lt;code&gt;size&lt;/code&gt;.&lt;/p&gt;<a name="line.4836"></a>
<FONT color="green">4837</FONT>         *<a name="line.4837"></a>
<FONT color="green">4838</FONT>         * &lt;pre&gt;<a name="line.4838"></a>
<FONT color="green">4839</FONT>         * StringUtils.leftPad(null, *, *)     = null<a name="line.4839"></a>
<FONT color="green">4840</FONT>         * StringUtils.leftPad("", 3, 'z')     = "zzz"<a name="line.4840"></a>
<FONT color="green">4841</FONT>         * StringUtils.leftPad("bat", 3, 'z')  = "bat"<a name="line.4841"></a>
<FONT color="green">4842</FONT>         * StringUtils.leftPad("bat", 5, 'z')  = "zzbat"<a name="line.4842"></a>
<FONT color="green">4843</FONT>         * StringUtils.leftPad("bat", 1, 'z')  = "bat"<a name="line.4843"></a>
<FONT color="green">4844</FONT>         * StringUtils.leftPad("bat", -1, 'z') = "bat"<a name="line.4844"></a>
<FONT color="green">4845</FONT>         * &lt;/pre&gt;<a name="line.4845"></a>
<FONT color="green">4846</FONT>         *<a name="line.4846"></a>
<FONT color="green">4847</FONT>         * @param str  the String to pad out, may be null<a name="line.4847"></a>
<FONT color="green">4848</FONT>         * @param size  the size to pad to<a name="line.4848"></a>
<FONT color="green">4849</FONT>         * @param padChar  the character to pad with<a name="line.4849"></a>
<FONT color="green">4850</FONT>         * @return left padded String or original String if no padding is necessary,<a name="line.4850"></a>
<FONT color="green">4851</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4851"></a>
<FONT color="green">4852</FONT>         * @since 2.0<a name="line.4852"></a>
<FONT color="green">4853</FONT>         */<a name="line.4853"></a>
<FONT color="green">4854</FONT>        public static String leftPad(String str, int size, char padChar) {<a name="line.4854"></a>
<FONT color="green">4855</FONT>            if (str == null) {<a name="line.4855"></a>
<FONT color="green">4856</FONT>                return null;<a name="line.4856"></a>
<FONT color="green">4857</FONT>            }<a name="line.4857"></a>
<FONT color="green">4858</FONT>            int pads = size - str.length();<a name="line.4858"></a>
<FONT color="green">4859</FONT>            if (pads &lt;= 0) {<a name="line.4859"></a>
<FONT color="green">4860</FONT>                return str; // returns original String when possible<a name="line.4860"></a>
<FONT color="green">4861</FONT>            }<a name="line.4861"></a>
<FONT color="green">4862</FONT>            if (pads &gt; PAD_LIMIT) {<a name="line.4862"></a>
<FONT color="green">4863</FONT>                return leftPad(str, size, String.valueOf(padChar));<a name="line.4863"></a>
<FONT color="green">4864</FONT>            }<a name="line.4864"></a>
<FONT color="green">4865</FONT>            return padding(pads, padChar).concat(str);<a name="line.4865"></a>
<FONT color="green">4866</FONT>        }<a name="line.4866"></a>
<FONT color="green">4867</FONT>    <a name="line.4867"></a>
<FONT color="green">4868</FONT>        /**<a name="line.4868"></a>
<FONT color="green">4869</FONT>         * &lt;p&gt;Left pad a String with a specified String.&lt;/p&gt;<a name="line.4869"></a>
<FONT color="green">4870</FONT>         *<a name="line.4870"></a>
<FONT color="green">4871</FONT>         * &lt;p&gt;Pad to a size of &lt;code&gt;size&lt;/code&gt;.&lt;/p&gt;<a name="line.4871"></a>
<FONT color="green">4872</FONT>         *<a name="line.4872"></a>
<FONT color="green">4873</FONT>         * &lt;pre&gt;<a name="line.4873"></a>
<FONT color="green">4874</FONT>         * StringUtils.leftPad(null, *, *)      = null<a name="line.4874"></a>
<FONT color="green">4875</FONT>         * StringUtils.leftPad("", 3, "z")      = "zzz"<a name="line.4875"></a>
<FONT color="green">4876</FONT>         * StringUtils.leftPad("bat", 3, "yz")  = "bat"<a name="line.4876"></a>
<FONT color="green">4877</FONT>         * StringUtils.leftPad("bat", 5, "yz")  = "yzbat"<a name="line.4877"></a>
<FONT color="green">4878</FONT>         * StringUtils.leftPad("bat", 8, "yz")  = "yzyzybat"<a name="line.4878"></a>
<FONT color="green">4879</FONT>         * StringUtils.leftPad("bat", 1, "yz")  = "bat"<a name="line.4879"></a>
<FONT color="green">4880</FONT>         * StringUtils.leftPad("bat", -1, "yz") = "bat"<a name="line.4880"></a>
<FONT color="green">4881</FONT>         * StringUtils.leftPad("bat", 5, null)  = "  bat"<a name="line.4881"></a>
<FONT color="green">4882</FONT>         * StringUtils.leftPad("bat", 5, "")    = "  bat"<a name="line.4882"></a>
<FONT color="green">4883</FONT>         * &lt;/pre&gt;<a name="line.4883"></a>
<FONT color="green">4884</FONT>         *<a name="line.4884"></a>
<FONT color="green">4885</FONT>         * @param str  the String to pad out, may be null<a name="line.4885"></a>
<FONT color="green">4886</FONT>         * @param size  the size to pad to<a name="line.4886"></a>
<FONT color="green">4887</FONT>         * @param padStr  the String to pad with, null or empty treated as single space<a name="line.4887"></a>
<FONT color="green">4888</FONT>         * @return left padded String or original String if no padding is necessary,<a name="line.4888"></a>
<FONT color="green">4889</FONT>         *  &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4889"></a>
<FONT color="green">4890</FONT>         */<a name="line.4890"></a>
<FONT color="green">4891</FONT>        public static String leftPad(String str, int size, String padStr) {<a name="line.4891"></a>
<FONT color="green">4892</FONT>            if (str == null) {<a name="line.4892"></a>
<FONT color="green">4893</FONT>                return null;<a name="line.4893"></a>
<FONT color="green">4894</FONT>            }<a name="line.4894"></a>
<FONT color="green">4895</FONT>            if (isEmpty(padStr)) {<a name="line.4895"></a>
<FONT color="green">4896</FONT>                padStr = " ";<a name="line.4896"></a>
<FONT color="green">4897</FONT>            }<a name="line.4897"></a>
<FONT color="green">4898</FONT>            int padLen = padStr.length();<a name="line.4898"></a>
<FONT color="green">4899</FONT>            int strLen = str.length();<a name="line.4899"></a>
<FONT color="green">4900</FONT>            int pads = size - strLen;<a name="line.4900"></a>
<FONT color="green">4901</FONT>            if (pads &lt;= 0) {<a name="line.4901"></a>
<FONT color="green">4902</FONT>                return str; // returns original String when possible<a name="line.4902"></a>
<FONT color="green">4903</FONT>            }<a name="line.4903"></a>
<FONT color="green">4904</FONT>            if (padLen == 1 &amp;&amp; pads &lt;= PAD_LIMIT) {<a name="line.4904"></a>
<FONT color="green">4905</FONT>                return leftPad(str, size, padStr.charAt(0));<a name="line.4905"></a>
<FONT color="green">4906</FONT>            }<a name="line.4906"></a>
<FONT color="green">4907</FONT>    <a name="line.4907"></a>
<FONT color="green">4908</FONT>            if (pads == padLen) {<a name="line.4908"></a>
<FONT color="green">4909</FONT>                return padStr.concat(str);<a name="line.4909"></a>
<FONT color="green">4910</FONT>            } else if (pads &lt; padLen) {<a name="line.4910"></a>
<FONT color="green">4911</FONT>                return padStr.substring(0, pads).concat(str);<a name="line.4911"></a>
<FONT color="green">4912</FONT>            } else {<a name="line.4912"></a>
<FONT color="green">4913</FONT>                char[] padding = new char[pads];<a name="line.4913"></a>
<FONT color="green">4914</FONT>                char[] padChars = padStr.toCharArray();<a name="line.4914"></a>
<FONT color="green">4915</FONT>                for (int i = 0; i &lt; pads; i++) {<a name="line.4915"></a>
<FONT color="green">4916</FONT>                    padding[i] = padChars[i % padLen];<a name="line.4916"></a>
<FONT color="green">4917</FONT>                }<a name="line.4917"></a>
<FONT color="green">4918</FONT>                return new String(padding).concat(str);<a name="line.4918"></a>
<FONT color="green">4919</FONT>            }<a name="line.4919"></a>
<FONT color="green">4920</FONT>        }<a name="line.4920"></a>
<FONT color="green">4921</FONT>    <a name="line.4921"></a>
<FONT color="green">4922</FONT>        /**<a name="line.4922"></a>
<FONT color="green">4923</FONT>         * Gets a String's length or &lt;code&gt;0&lt;/code&gt; if the String is &lt;code&gt;null&lt;/code&gt;.<a name="line.4923"></a>
<FONT color="green">4924</FONT>         * <a name="line.4924"></a>
<FONT color="green">4925</FONT>         * @param str<a name="line.4925"></a>
<FONT color="green">4926</FONT>         *            a String or &lt;code&gt;null&lt;/code&gt;<a name="line.4926"></a>
<FONT color="green">4927</FONT>         * @return String length or &lt;code&gt;0&lt;/code&gt; if the String is &lt;code&gt;null&lt;/code&gt;.<a name="line.4927"></a>
<FONT color="green">4928</FONT>         * @since 2.4<a name="line.4928"></a>
<FONT color="green">4929</FONT>         */<a name="line.4929"></a>
<FONT color="green">4930</FONT>        public static int length(String str) {<a name="line.4930"></a>
<FONT color="green">4931</FONT>            return str == null ? 0 : str.length();<a name="line.4931"></a>
<FONT color="green">4932</FONT>        }<a name="line.4932"></a>
<FONT color="green">4933</FONT>        <a name="line.4933"></a>
<FONT color="green">4934</FONT>        // Centering<a name="line.4934"></a>
<FONT color="green">4935</FONT>        //-----------------------------------------------------------------------<a name="line.4935"></a>
<FONT color="green">4936</FONT>        /**<a name="line.4936"></a>
<FONT color="green">4937</FONT>         * &lt;p&gt;Centers a String in a larger String of size &lt;code&gt;size&lt;/code&gt;<a name="line.4937"></a>
<FONT color="green">4938</FONT>         * using the space character (' ').&lt;p&gt;<a name="line.4938"></a>
<FONT color="green">4939</FONT>         *<a name="line.4939"></a>
<FONT color="green">4940</FONT>         * &lt;p&gt;If the size is less than the String length, the String is returned.<a name="line.4940"></a>
<FONT color="green">4941</FONT>         * A &lt;code&gt;null&lt;/code&gt; String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.4941"></a>
<FONT color="green">4942</FONT>         * A negative size is treated as zero.&lt;/p&gt;<a name="line.4942"></a>
<FONT color="green">4943</FONT>         *<a name="line.4943"></a>
<FONT color="green">4944</FONT>         * &lt;p&gt;Equivalent to &lt;code&gt;center(str, size, " ")&lt;/code&gt;.&lt;/p&gt;<a name="line.4944"></a>
<FONT color="green">4945</FONT>         *<a name="line.4945"></a>
<FONT color="green">4946</FONT>         * &lt;pre&gt;<a name="line.4946"></a>
<FONT color="green">4947</FONT>         * StringUtils.center(null, *)   = null<a name="line.4947"></a>
<FONT color="green">4948</FONT>         * StringUtils.center("", 4)     = "    "<a name="line.4948"></a>
<FONT color="green">4949</FONT>         * StringUtils.center("ab", -1)  = "ab"<a name="line.4949"></a>
<FONT color="green">4950</FONT>         * StringUtils.center("ab", 4)   = " ab "<a name="line.4950"></a>
<FONT color="green">4951</FONT>         * StringUtils.center("abcd", 2) = "abcd"<a name="line.4951"></a>
<FONT color="green">4952</FONT>         * StringUtils.center("a", 4)    = " a  "<a name="line.4952"></a>
<FONT color="green">4953</FONT>         * &lt;/pre&gt;<a name="line.4953"></a>
<FONT color="green">4954</FONT>         *<a name="line.4954"></a>
<FONT color="green">4955</FONT>         * @param str  the String to center, may be null<a name="line.4955"></a>
<FONT color="green">4956</FONT>         * @param size  the int size of new String, negative treated as zero<a name="line.4956"></a>
<FONT color="green">4957</FONT>         * @return centered String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4957"></a>
<FONT color="green">4958</FONT>         */<a name="line.4958"></a>
<FONT color="green">4959</FONT>        public static String center(String str, int size) {<a name="line.4959"></a>
<FONT color="green">4960</FONT>            return center(str, size, ' ');<a name="line.4960"></a>
<FONT color="green">4961</FONT>        }<a name="line.4961"></a>
<FONT color="green">4962</FONT>    <a name="line.4962"></a>
<FONT color="green">4963</FONT>        /**<a name="line.4963"></a>
<FONT color="green">4964</FONT>         * &lt;p&gt;Centers a String in a larger String of size &lt;code&gt;size&lt;/code&gt;.<a name="line.4964"></a>
<FONT color="green">4965</FONT>         * Uses a supplied character as the value to pad the String with.&lt;/p&gt;<a name="line.4965"></a>
<FONT color="green">4966</FONT>         *<a name="line.4966"></a>
<FONT color="green">4967</FONT>         * &lt;p&gt;If the size is less than the String length, the String is returned.<a name="line.4967"></a>
<FONT color="green">4968</FONT>         * A &lt;code&gt;null&lt;/code&gt; String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.4968"></a>
<FONT color="green">4969</FONT>         * A negative size is treated as zero.&lt;/p&gt;<a name="line.4969"></a>
<FONT color="green">4970</FONT>         *<a name="line.4970"></a>
<FONT color="green">4971</FONT>         * &lt;pre&gt;<a name="line.4971"></a>
<FONT color="green">4972</FONT>         * StringUtils.center(null, *, *)     = null<a name="line.4972"></a>
<FONT color="green">4973</FONT>         * StringUtils.center("", 4, ' ')     = "    "<a name="line.4973"></a>
<FONT color="green">4974</FONT>         * StringUtils.center("ab", -1, ' ')  = "ab"<a name="line.4974"></a>
<FONT color="green">4975</FONT>         * StringUtils.center("ab", 4, ' ')   = " ab"<a name="line.4975"></a>
<FONT color="green">4976</FONT>         * StringUtils.center("abcd", 2, ' ') = "abcd"<a name="line.4976"></a>
<FONT color="green">4977</FONT>         * StringUtils.center("a", 4, ' ')    = " a  "<a name="line.4977"></a>
<FONT color="green">4978</FONT>         * StringUtils.center("a", 4, 'y')    = "yayy"<a name="line.4978"></a>
<FONT color="green">4979</FONT>         * &lt;/pre&gt;<a name="line.4979"></a>
<FONT color="green">4980</FONT>         *<a name="line.4980"></a>
<FONT color="green">4981</FONT>         * @param str  the String to center, may be null<a name="line.4981"></a>
<FONT color="green">4982</FONT>         * @param size  the int size of new String, negative treated as zero<a name="line.4982"></a>
<FONT color="green">4983</FONT>         * @param padChar  the character to pad the new String with<a name="line.4983"></a>
<FONT color="green">4984</FONT>         * @return centered String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.4984"></a>
<FONT color="green">4985</FONT>         * @since 2.0<a name="line.4985"></a>
<FONT color="green">4986</FONT>         */<a name="line.4986"></a>
<FONT color="green">4987</FONT>        public static String center(String str, int size, char padChar) {<a name="line.4987"></a>
<FONT color="green">4988</FONT>            if (str == null || size &lt;= 0) {<a name="line.4988"></a>
<FONT color="green">4989</FONT>                return str;<a name="line.4989"></a>
<FONT color="green">4990</FONT>            }<a name="line.4990"></a>
<FONT color="green">4991</FONT>            int strLen = str.length();<a name="line.4991"></a>
<FONT color="green">4992</FONT>            int pads = size - strLen;<a name="line.4992"></a>
<FONT color="green">4993</FONT>            if (pads &lt;= 0) {<a name="line.4993"></a>
<FONT color="green">4994</FONT>                return str;<a name="line.4994"></a>
<FONT color="green">4995</FONT>            }<a name="line.4995"></a>
<FONT color="green">4996</FONT>            str = leftPad(str, strLen + pads / 2, padChar);<a name="line.4996"></a>
<FONT color="green">4997</FONT>            str = rightPad(str, size, padChar);<a name="line.4997"></a>
<FONT color="green">4998</FONT>            return str;<a name="line.4998"></a>
<FONT color="green">4999</FONT>        }<a name="line.4999"></a>
<FONT color="green">5000</FONT>    <a name="line.5000"></a>
<FONT color="green">5001</FONT>        /**<a name="line.5001"></a>
<FONT color="green">5002</FONT>         * &lt;p&gt;Centers a String in a larger String of size &lt;code&gt;size&lt;/code&gt;.<a name="line.5002"></a>
<FONT color="green">5003</FONT>         * Uses a supplied String as the value to pad the String with.&lt;/p&gt;<a name="line.5003"></a>
<FONT color="green">5004</FONT>         *<a name="line.5004"></a>
<FONT color="green">5005</FONT>         * &lt;p&gt;If the size is less than the String length, the String is returned.<a name="line.5005"></a>
<FONT color="green">5006</FONT>         * A &lt;code&gt;null&lt;/code&gt; String returns &lt;code&gt;null&lt;/code&gt;.<a name="line.5006"></a>
<FONT color="green">5007</FONT>         * A negative size is treated as zero.&lt;/p&gt;<a name="line.5007"></a>
<FONT color="green">5008</FONT>         *<a name="line.5008"></a>
<FONT color="green">5009</FONT>         * &lt;pre&gt;<a name="line.5009"></a>
<FONT color="green">5010</FONT>         * StringUtils.center(null, *, *)     = null<a name="line.5010"></a>
<FONT color="green">5011</FONT>         * StringUtils.center("", 4, " ")     = "    "<a name="line.5011"></a>
<FONT color="green">5012</FONT>         * StringUtils.center("ab", -1, " ")  = "ab"<a name="line.5012"></a>
<FONT color="green">5013</FONT>         * StringUtils.center("ab", 4, " ")   = " ab"<a name="line.5013"></a>
<FONT color="green">5014</FONT>         * StringUtils.center("abcd", 2, " ") = "abcd"<a name="line.5014"></a>
<FONT color="green">5015</FONT>         * StringUtils.center("a", 4, " ")    = " a  "<a name="line.5015"></a>
<FONT color="green">5016</FONT>         * StringUtils.center("a", 4, "yz")   = "yayz"<a name="line.5016"></a>
<FONT color="green">5017</FONT>         * StringUtils.center("abc", 7, null) = "  abc  "<a name="line.5017"></a>
<FONT color="green">5018</FONT>         * StringUtils.center("abc", 7, "")   = "  abc  "<a name="line.5018"></a>
<FONT color="green">5019</FONT>         * &lt;/pre&gt;<a name="line.5019"></a>
<FONT color="green">5020</FONT>         *<a name="line.5020"></a>
<FONT color="green">5021</FONT>         * @param str  the String to center, may be null<a name="line.5021"></a>
<FONT color="green">5022</FONT>         * @param size  the int size of new String, negative treated as zero<a name="line.5022"></a>
<FONT color="green">5023</FONT>         * @param padStr  the String to pad the new String with, must not be null or empty<a name="line.5023"></a>
<FONT color="green">5024</FONT>         * @return centered String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5024"></a>
<FONT color="green">5025</FONT>         * @throws IllegalArgumentException if padStr is &lt;code&gt;null&lt;/code&gt; or empty<a name="line.5025"></a>
<FONT color="green">5026</FONT>         */<a name="line.5026"></a>
<FONT color="green">5027</FONT>        public static String center(String str, int size, String padStr) {<a name="line.5027"></a>
<FONT color="green">5028</FONT>            if (str == null || size &lt;= 0) {<a name="line.5028"></a>
<FONT color="green">5029</FONT>                return str;<a name="line.5029"></a>
<FONT color="green">5030</FONT>            }<a name="line.5030"></a>
<FONT color="green">5031</FONT>            if (isEmpty(padStr)) {<a name="line.5031"></a>
<FONT color="green">5032</FONT>                padStr = " ";<a name="line.5032"></a>
<FONT color="green">5033</FONT>            }<a name="line.5033"></a>
<FONT color="green">5034</FONT>            int strLen = str.length();<a name="line.5034"></a>
<FONT color="green">5035</FONT>            int pads = size - strLen;<a name="line.5035"></a>
<FONT color="green">5036</FONT>            if (pads &lt;= 0) {<a name="line.5036"></a>
<FONT color="green">5037</FONT>                return str;<a name="line.5037"></a>
<FONT color="green">5038</FONT>            }<a name="line.5038"></a>
<FONT color="green">5039</FONT>            str = leftPad(str, strLen + pads / 2, padStr);<a name="line.5039"></a>
<FONT color="green">5040</FONT>            str = rightPad(str, size, padStr);<a name="line.5040"></a>
<FONT color="green">5041</FONT>            return str;<a name="line.5041"></a>
<FONT color="green">5042</FONT>        }<a name="line.5042"></a>
<FONT color="green">5043</FONT>    <a name="line.5043"></a>
<FONT color="green">5044</FONT>        // Case conversion<a name="line.5044"></a>
<FONT color="green">5045</FONT>        //-----------------------------------------------------------------------<a name="line.5045"></a>
<FONT color="green">5046</FONT>        /**<a name="line.5046"></a>
<FONT color="green">5047</FONT>         * &lt;p&gt;Converts a String to upper case as per {@link String#toUpperCase()}.&lt;/p&gt;<a name="line.5047"></a>
<FONT color="green">5048</FONT>         *<a name="line.5048"></a>
<FONT color="green">5049</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.5049"></a>
<FONT color="green">5050</FONT>         *<a name="line.5050"></a>
<FONT color="green">5051</FONT>         * &lt;pre&gt;<a name="line.5051"></a>
<FONT color="green">5052</FONT>         * StringUtils.upperCase(null)  = null<a name="line.5052"></a>
<FONT color="green">5053</FONT>         * StringUtils.upperCase("")    = ""<a name="line.5053"></a>
<FONT color="green">5054</FONT>         * StringUtils.upperCase("aBc") = "ABC"<a name="line.5054"></a>
<FONT color="green">5055</FONT>         * &lt;/pre&gt;<a name="line.5055"></a>
<FONT color="green">5056</FONT>         *<a name="line.5056"></a>
<FONT color="green">5057</FONT>         * &lt;p&gt;&lt;strong&gt;Note:&lt;/strong&gt; As described in the documentation for {@link String#toUpperCase()},<a name="line.5057"></a>
<FONT color="green">5058</FONT>         * the result of this method is affected by the current locale.<a name="line.5058"></a>
<FONT color="green">5059</FONT>         * For platform-independent case transformations, the method {@link #lowerCase(String, Locale)}<a name="line.5059"></a>
<FONT color="green">5060</FONT>         * should be used with a specific locale (e.g. {@link Locale#ENGLISH}).&lt;/p&gt;<a name="line.5060"></a>
<FONT color="green">5061</FONT>         *<a name="line.5061"></a>
<FONT color="green">5062</FONT>         * @param str  the String to upper case, may be null<a name="line.5062"></a>
<FONT color="green">5063</FONT>         * @return the upper cased String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5063"></a>
<FONT color="green">5064</FONT>         */<a name="line.5064"></a>
<FONT color="green">5065</FONT>        public static String upperCase(String str) {<a name="line.5065"></a>
<FONT color="green">5066</FONT>            if (str == null) {<a name="line.5066"></a>
<FONT color="green">5067</FONT>                return null;<a name="line.5067"></a>
<FONT color="green">5068</FONT>            }<a name="line.5068"></a>
<FONT color="green">5069</FONT>            return str.toUpperCase();<a name="line.5069"></a>
<FONT color="green">5070</FONT>        }<a name="line.5070"></a>
<FONT color="green">5071</FONT>    <a name="line.5071"></a>
<FONT color="green">5072</FONT>        /**<a name="line.5072"></a>
<FONT color="green">5073</FONT>         * &lt;p&gt;Converts a String to upper case as per {@link String#toUpperCase(Locale)}.&lt;/p&gt;<a name="line.5073"></a>
<FONT color="green">5074</FONT>         *<a name="line.5074"></a>
<FONT color="green">5075</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.5075"></a>
<FONT color="green">5076</FONT>         *<a name="line.5076"></a>
<FONT color="green">5077</FONT>         * &lt;pre&gt;<a name="line.5077"></a>
<FONT color="green">5078</FONT>         * StringUtils.upperCase(null, Locale.ENGLISH)  = null<a name="line.5078"></a>
<FONT color="green">5079</FONT>         * StringUtils.upperCase("", Locale.ENGLISH)    = ""<a name="line.5079"></a>
<FONT color="green">5080</FONT>         * StringUtils.upperCase("aBc", Locale.ENGLISH) = "ABC"<a name="line.5080"></a>
<FONT color="green">5081</FONT>         * &lt;/pre&gt;<a name="line.5081"></a>
<FONT color="green">5082</FONT>         *<a name="line.5082"></a>
<FONT color="green">5083</FONT>         * @param str  the String to upper case, may be null<a name="line.5083"></a>
<FONT color="green">5084</FONT>         * @param locale  the locale that defines the case transformation rules, must not be null<a name="line.5084"></a>
<FONT color="green">5085</FONT>         * @return the upper cased String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5085"></a>
<FONT color="green">5086</FONT>         * @since 2.5<a name="line.5086"></a>
<FONT color="green">5087</FONT>         */<a name="line.5087"></a>
<FONT color="green">5088</FONT>        public static String upperCase(String str, Locale locale) {<a name="line.5088"></a>
<FONT color="green">5089</FONT>            if (str == null) {<a name="line.5089"></a>
<FONT color="green">5090</FONT>                return null;<a name="line.5090"></a>
<FONT color="green">5091</FONT>            }<a name="line.5091"></a>
<FONT color="green">5092</FONT>            return str.toUpperCase(locale);<a name="line.5092"></a>
<FONT color="green">5093</FONT>        }<a name="line.5093"></a>
<FONT color="green">5094</FONT>    <a name="line.5094"></a>
<FONT color="green">5095</FONT>        /**<a name="line.5095"></a>
<FONT color="green">5096</FONT>         * &lt;p&gt;Converts a String to lower case as per {@link String#toLowerCase()}.&lt;/p&gt;<a name="line.5096"></a>
<FONT color="green">5097</FONT>         *<a name="line.5097"></a>
<FONT color="green">5098</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.5098"></a>
<FONT color="green">5099</FONT>         *<a name="line.5099"></a>
<FONT color="green">5100</FONT>         * &lt;pre&gt;<a name="line.5100"></a>
<FONT color="green">5101</FONT>         * StringUtils.lowerCase(null)  = null<a name="line.5101"></a>
<FONT color="green">5102</FONT>         * StringUtils.lowerCase("")    = ""<a name="line.5102"></a>
<FONT color="green">5103</FONT>         * StringUtils.lowerCase("aBc") = "abc"<a name="line.5103"></a>
<FONT color="green">5104</FONT>         * &lt;/pre&gt;<a name="line.5104"></a>
<FONT color="green">5105</FONT>         *<a name="line.5105"></a>
<FONT color="green">5106</FONT>         * &lt;p&gt;&lt;strong&gt;Note:&lt;/strong&gt; As described in the documentation for {@link String#toLowerCase()},<a name="line.5106"></a>
<FONT color="green">5107</FONT>         * the result of this method is affected by the current locale.<a name="line.5107"></a>
<FONT color="green">5108</FONT>         * For platform-independent case transformations, the method {@link #lowerCase(String, Locale)}<a name="line.5108"></a>
<FONT color="green">5109</FONT>         * should be used with a specific locale (e.g. {@link Locale#ENGLISH}).&lt;/p&gt;<a name="line.5109"></a>
<FONT color="green">5110</FONT>         *<a name="line.5110"></a>
<FONT color="green">5111</FONT>         * @param str  the String to lower case, may be null<a name="line.5111"></a>
<FONT color="green">5112</FONT>         * @return the lower cased String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5112"></a>
<FONT color="green">5113</FONT>         */<a name="line.5113"></a>
<FONT color="green">5114</FONT>        public static String lowerCase(String str) {<a name="line.5114"></a>
<FONT color="green">5115</FONT>            if (str == null) {<a name="line.5115"></a>
<FONT color="green">5116</FONT>                return null;<a name="line.5116"></a>
<FONT color="green">5117</FONT>            }<a name="line.5117"></a>
<FONT color="green">5118</FONT>            return str.toLowerCase();<a name="line.5118"></a>
<FONT color="green">5119</FONT>        }<a name="line.5119"></a>
<FONT color="green">5120</FONT>    <a name="line.5120"></a>
<FONT color="green">5121</FONT>        /**<a name="line.5121"></a>
<FONT color="green">5122</FONT>         * &lt;p&gt;Converts a String to lower case as per {@link String#toLowerCase(Locale)}.&lt;/p&gt;<a name="line.5122"></a>
<FONT color="green">5123</FONT>         *<a name="line.5123"></a>
<FONT color="green">5124</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.5124"></a>
<FONT color="green">5125</FONT>         *<a name="line.5125"></a>
<FONT color="green">5126</FONT>         * &lt;pre&gt;<a name="line.5126"></a>
<FONT color="green">5127</FONT>         * StringUtils.lowerCase(null, Locale.ENGLISH)  = null<a name="line.5127"></a>
<FONT color="green">5128</FONT>         * StringUtils.lowerCase("", Locale.ENGLISH)    = ""<a name="line.5128"></a>
<FONT color="green">5129</FONT>         * StringUtils.lowerCase("aBc", Locale.ENGLISH) = "abc"<a name="line.5129"></a>
<FONT color="green">5130</FONT>         * &lt;/pre&gt;<a name="line.5130"></a>
<FONT color="green">5131</FONT>         *<a name="line.5131"></a>
<FONT color="green">5132</FONT>         * @param str  the String to lower case, may be null<a name="line.5132"></a>
<FONT color="green">5133</FONT>         * @param locale  the locale that defines the case transformation rules, must not be null<a name="line.5133"></a>
<FONT color="green">5134</FONT>         * @return the lower cased String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5134"></a>
<FONT color="green">5135</FONT>         * @since 2.5<a name="line.5135"></a>
<FONT color="green">5136</FONT>         */<a name="line.5136"></a>
<FONT color="green">5137</FONT>        public static String lowerCase(String str, Locale locale) {<a name="line.5137"></a>
<FONT color="green">5138</FONT>            if (str == null) {<a name="line.5138"></a>
<FONT color="green">5139</FONT>                return null;<a name="line.5139"></a>
<FONT color="green">5140</FONT>            }<a name="line.5140"></a>
<FONT color="green">5141</FONT>            return str.toLowerCase(locale);<a name="line.5141"></a>
<FONT color="green">5142</FONT>        }<a name="line.5142"></a>
<FONT color="green">5143</FONT>    <a name="line.5143"></a>
<FONT color="green">5144</FONT>        /**<a name="line.5144"></a>
<FONT color="green">5145</FONT>         * &lt;p&gt;Capitalizes a String changing the first letter to title case as<a name="line.5145"></a>
<FONT color="green">5146</FONT>         * per {@link Character#toTitleCase(char)}. No other letters are changed.&lt;/p&gt;<a name="line.5146"></a>
<FONT color="green">5147</FONT>         *<a name="line.5147"></a>
<FONT color="green">5148</FONT>         * &lt;p&gt;For a word based algorithm, see {@link WordUtils#capitalize(String)}.<a name="line.5148"></a>
<FONT color="green">5149</FONT>         * A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.5149"></a>
<FONT color="green">5150</FONT>         *<a name="line.5150"></a>
<FONT color="green">5151</FONT>         * &lt;pre&gt;<a name="line.5151"></a>
<FONT color="green">5152</FONT>         * StringUtils.capitalize(null)  = null<a name="line.5152"></a>
<FONT color="green">5153</FONT>         * StringUtils.capitalize("")    = ""<a name="line.5153"></a>
<FONT color="green">5154</FONT>         * StringUtils.capitalize("cat") = "Cat"<a name="line.5154"></a>
<FONT color="green">5155</FONT>         * StringUtils.capitalize("cAt") = "CAt"<a name="line.5155"></a>
<FONT color="green">5156</FONT>         * &lt;/pre&gt;<a name="line.5156"></a>
<FONT color="green">5157</FONT>         *<a name="line.5157"></a>
<FONT color="green">5158</FONT>         * @param str  the String to capitalize, may be null<a name="line.5158"></a>
<FONT color="green">5159</FONT>         * @return the capitalized String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5159"></a>
<FONT color="green">5160</FONT>         * @see WordUtils#capitalize(String)<a name="line.5160"></a>
<FONT color="green">5161</FONT>         * @see #uncapitalize(String)<a name="line.5161"></a>
<FONT color="green">5162</FONT>         * @since 2.0<a name="line.5162"></a>
<FONT color="green">5163</FONT>         */<a name="line.5163"></a>
<FONT color="green">5164</FONT>        public static String capitalize(String str) {<a name="line.5164"></a>
<FONT color="green">5165</FONT>            int strLen;<a name="line.5165"></a>
<FONT color="green">5166</FONT>            if (str == null || (strLen = str.length()) == 0) {<a name="line.5166"></a>
<FONT color="green">5167</FONT>                return str;<a name="line.5167"></a>
<FONT color="green">5168</FONT>            }<a name="line.5168"></a>
<FONT color="green">5169</FONT>            return new StrBuilder(strLen)<a name="line.5169"></a>
<FONT color="green">5170</FONT>                .append(Character.toTitleCase(str.charAt(0)))<a name="line.5170"></a>
<FONT color="green">5171</FONT>                .append(str.substring(1))<a name="line.5171"></a>
<FONT color="green">5172</FONT>                .toString();<a name="line.5172"></a>
<FONT color="green">5173</FONT>        }<a name="line.5173"></a>
<FONT color="green">5174</FONT>    <a name="line.5174"></a>
<FONT color="green">5175</FONT>        /**<a name="line.5175"></a>
<FONT color="green">5176</FONT>         * &lt;p&gt;Capitalizes a String changing the first letter to title case as<a name="line.5176"></a>
<FONT color="green">5177</FONT>         * per {@link Character#toTitleCase(char)}. No other letters are changed.&lt;/p&gt;<a name="line.5177"></a>
<FONT color="green">5178</FONT>         *<a name="line.5178"></a>
<FONT color="green">5179</FONT>         * @param str  the String to capitalize, may be null<a name="line.5179"></a>
<FONT color="green">5180</FONT>         * @return the capitalized String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5180"></a>
<FONT color="green">5181</FONT>         * @deprecated Use the standardly named {@link #capitalize(String)}.<a name="line.5181"></a>
<FONT color="green">5182</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.5182"></a>
<FONT color="green">5183</FONT>         */<a name="line.5183"></a>
<FONT color="green">5184</FONT>        public static String capitalise(String str) {<a name="line.5184"></a>
<FONT color="green">5185</FONT>            return capitalize(str);<a name="line.5185"></a>
<FONT color="green">5186</FONT>        }<a name="line.5186"></a>
<FONT color="green">5187</FONT>    <a name="line.5187"></a>
<FONT color="green">5188</FONT>        /**<a name="line.5188"></a>
<FONT color="green">5189</FONT>         * &lt;p&gt;Uncapitalizes a String changing the first letter to title case as<a name="line.5189"></a>
<FONT color="green">5190</FONT>         * per {@link Character#toLowerCase(char)}. No other letters are changed.&lt;/p&gt;<a name="line.5190"></a>
<FONT color="green">5191</FONT>         *<a name="line.5191"></a>
<FONT color="green">5192</FONT>         * &lt;p&gt;For a word based algorithm, see {@link WordUtils#uncapitalize(String)}.<a name="line.5192"></a>
<FONT color="green">5193</FONT>         * A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.5193"></a>
<FONT color="green">5194</FONT>         *<a name="line.5194"></a>
<FONT color="green">5195</FONT>         * &lt;pre&gt;<a name="line.5195"></a>
<FONT color="green">5196</FONT>         * StringUtils.uncapitalize(null)  = null<a name="line.5196"></a>
<FONT color="green">5197</FONT>         * StringUtils.uncapitalize("")    = ""<a name="line.5197"></a>
<FONT color="green">5198</FONT>         * StringUtils.uncapitalize("Cat") = "cat"<a name="line.5198"></a>
<FONT color="green">5199</FONT>         * StringUtils.uncapitalize("CAT") = "cAT"<a name="line.5199"></a>
<FONT color="green">5200</FONT>         * &lt;/pre&gt;<a name="line.5200"></a>
<FONT color="green">5201</FONT>         *<a name="line.5201"></a>
<FONT color="green">5202</FONT>         * @param str  the String to uncapitalize, may be null<a name="line.5202"></a>
<FONT color="green">5203</FONT>         * @return the uncapitalized String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5203"></a>
<FONT color="green">5204</FONT>         * @see WordUtils#uncapitalize(String)<a name="line.5204"></a>
<FONT color="green">5205</FONT>         * @see #capitalize(String)<a name="line.5205"></a>
<FONT color="green">5206</FONT>         * @since 2.0<a name="line.5206"></a>
<FONT color="green">5207</FONT>         */<a name="line.5207"></a>
<FONT color="green">5208</FONT>        public static String uncapitalize(String str) {<a name="line.5208"></a>
<FONT color="green">5209</FONT>            int strLen;<a name="line.5209"></a>
<FONT color="green">5210</FONT>            if (str == null || (strLen = str.length()) == 0) {<a name="line.5210"></a>
<FONT color="green">5211</FONT>                return str;<a name="line.5211"></a>
<FONT color="green">5212</FONT>            }<a name="line.5212"></a>
<FONT color="green">5213</FONT>            return new StrBuilder(strLen)<a name="line.5213"></a>
<FONT color="green">5214</FONT>                .append(Character.toLowerCase(str.charAt(0)))<a name="line.5214"></a>
<FONT color="green">5215</FONT>                .append(str.substring(1))<a name="line.5215"></a>
<FONT color="green">5216</FONT>                .toString();<a name="line.5216"></a>
<FONT color="green">5217</FONT>        }<a name="line.5217"></a>
<FONT color="green">5218</FONT>    <a name="line.5218"></a>
<FONT color="green">5219</FONT>        /**<a name="line.5219"></a>
<FONT color="green">5220</FONT>         * &lt;p&gt;Uncapitalizes a String changing the first letter to title case as<a name="line.5220"></a>
<FONT color="green">5221</FONT>         * per {@link Character#toLowerCase(char)}. No other letters are changed.&lt;/p&gt;<a name="line.5221"></a>
<FONT color="green">5222</FONT>         *<a name="line.5222"></a>
<FONT color="green">5223</FONT>         * @param str  the String to uncapitalize, may be null<a name="line.5223"></a>
<FONT color="green">5224</FONT>         * @return the uncapitalized String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5224"></a>
<FONT color="green">5225</FONT>         * @deprecated Use the standardly named {@link #uncapitalize(String)}.<a name="line.5225"></a>
<FONT color="green">5226</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.5226"></a>
<FONT color="green">5227</FONT>         */<a name="line.5227"></a>
<FONT color="green">5228</FONT>        public static String uncapitalise(String str) {<a name="line.5228"></a>
<FONT color="green">5229</FONT>            return uncapitalize(str);<a name="line.5229"></a>
<FONT color="green">5230</FONT>        }<a name="line.5230"></a>
<FONT color="green">5231</FONT>    <a name="line.5231"></a>
<FONT color="green">5232</FONT>        /**<a name="line.5232"></a>
<FONT color="green">5233</FONT>         * &lt;p&gt;Swaps the case of a String changing upper and title case to<a name="line.5233"></a>
<FONT color="green">5234</FONT>         * lower case, and lower case to upper case.&lt;/p&gt;<a name="line.5234"></a>
<FONT color="green">5235</FONT>         *<a name="line.5235"></a>
<FONT color="green">5236</FONT>         * &lt;ul&gt;<a name="line.5236"></a>
<FONT color="green">5237</FONT>         *  &lt;li&gt;Upper case character converts to Lower case&lt;/li&gt;<a name="line.5237"></a>
<FONT color="green">5238</FONT>         *  &lt;li&gt;Title case character converts to Lower case&lt;/li&gt;<a name="line.5238"></a>
<FONT color="green">5239</FONT>         *  &lt;li&gt;Lower case character converts to Upper case&lt;/li&gt;<a name="line.5239"></a>
<FONT color="green">5240</FONT>         * &lt;/ul&gt;<a name="line.5240"></a>
<FONT color="green">5241</FONT>         *<a name="line.5241"></a>
<FONT color="green">5242</FONT>         * &lt;p&gt;For a word based algorithm, see {@link WordUtils#swapCase(String)}.<a name="line.5242"></a>
<FONT color="green">5243</FONT>         * A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.5243"></a>
<FONT color="green">5244</FONT>         *<a name="line.5244"></a>
<FONT color="green">5245</FONT>         * &lt;pre&gt;<a name="line.5245"></a>
<FONT color="green">5246</FONT>         * StringUtils.swapCase(null)                 = null<a name="line.5246"></a>
<FONT color="green">5247</FONT>         * StringUtils.swapCase("")                   = ""<a name="line.5247"></a>
<FONT color="green">5248</FONT>         * StringUtils.swapCase("The dog has a BONE") = "tHE DOG HAS A bone"<a name="line.5248"></a>
<FONT color="green">5249</FONT>         * &lt;/pre&gt;<a name="line.5249"></a>
<FONT color="green">5250</FONT>         *<a name="line.5250"></a>
<FONT color="green">5251</FONT>         * &lt;p&gt;NOTE: This method changed in Lang version 2.0.<a name="line.5251"></a>
<FONT color="green">5252</FONT>         * It no longer performs a word based algorithm.<a name="line.5252"></a>
<FONT color="green">5253</FONT>         * If you only use ASCII, you will notice no change.<a name="line.5253"></a>
<FONT color="green">5254</FONT>         * That functionality is available in WordUtils.&lt;/p&gt;<a name="line.5254"></a>
<FONT color="green">5255</FONT>         *<a name="line.5255"></a>
<FONT color="green">5256</FONT>         * @param str  the String to swap case, may be null<a name="line.5256"></a>
<FONT color="green">5257</FONT>         * @return the changed String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5257"></a>
<FONT color="green">5258</FONT>         */<a name="line.5258"></a>
<FONT color="green">5259</FONT>        public static String swapCase(String str) {<a name="line.5259"></a>
<FONT color="green">5260</FONT>            int strLen;<a name="line.5260"></a>
<FONT color="green">5261</FONT>            if (str == null || (strLen = str.length()) == 0) {<a name="line.5261"></a>
<FONT color="green">5262</FONT>                return str;<a name="line.5262"></a>
<FONT color="green">5263</FONT>            }<a name="line.5263"></a>
<FONT color="green">5264</FONT>            StrBuilder buffer = new StrBuilder(strLen);<a name="line.5264"></a>
<FONT color="green">5265</FONT>    <a name="line.5265"></a>
<FONT color="green">5266</FONT>            char ch = 0;<a name="line.5266"></a>
<FONT color="green">5267</FONT>            for (int i = 0; i &lt; strLen; i++) {<a name="line.5267"></a>
<FONT color="green">5268</FONT>                ch = str.charAt(i);<a name="line.5268"></a>
<FONT color="green">5269</FONT>                if (Character.isUpperCase(ch)) {<a name="line.5269"></a>
<FONT color="green">5270</FONT>                    ch = Character.toLowerCase(ch);<a name="line.5270"></a>
<FONT color="green">5271</FONT>                } else if (Character.isTitleCase(ch)) {<a name="line.5271"></a>
<FONT color="green">5272</FONT>                    ch = Character.toLowerCase(ch);<a name="line.5272"></a>
<FONT color="green">5273</FONT>                } else if (Character.isLowerCase(ch)) {<a name="line.5273"></a>
<FONT color="green">5274</FONT>                    ch = Character.toUpperCase(ch);<a name="line.5274"></a>
<FONT color="green">5275</FONT>                }<a name="line.5275"></a>
<FONT color="green">5276</FONT>                buffer.append(ch);<a name="line.5276"></a>
<FONT color="green">5277</FONT>            }<a name="line.5277"></a>
<FONT color="green">5278</FONT>            return buffer.toString();<a name="line.5278"></a>
<FONT color="green">5279</FONT>        }<a name="line.5279"></a>
<FONT color="green">5280</FONT>    <a name="line.5280"></a>
<FONT color="green">5281</FONT>        /**<a name="line.5281"></a>
<FONT color="green">5282</FONT>         * &lt;p&gt;Capitalizes all the whitespace separated words in a String.<a name="line.5282"></a>
<FONT color="green">5283</FONT>         * Only the first letter of each word is changed.&lt;/p&gt;<a name="line.5283"></a>
<FONT color="green">5284</FONT>         *<a name="line.5284"></a>
<FONT color="green">5285</FONT>         * &lt;p&gt;Whitespace is defined by {@link Character#isWhitespace(char)}.<a name="line.5285"></a>
<FONT color="green">5286</FONT>         * A &lt;code&gt;null&lt;/code&gt; input String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.5286"></a>
<FONT color="green">5287</FONT>         *<a name="line.5287"></a>
<FONT color="green">5288</FONT>         * @param str  the String to capitalize, may be null<a name="line.5288"></a>
<FONT color="green">5289</FONT>         * @return capitalized String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5289"></a>
<FONT color="green">5290</FONT>         * @deprecated Use the relocated {@link WordUtils#capitalize(String)}.<a name="line.5290"></a>
<FONT color="green">5291</FONT>         *             Method will be removed in Commons Lang 3.0.<a name="line.5291"></a>
<FONT color="green">5292</FONT>         */<a name="line.5292"></a>
<FONT color="green">5293</FONT>        public static String capitaliseAllWords(String str) {<a name="line.5293"></a>
<FONT color="green">5294</FONT>            return WordUtils.capitalize(str);<a name="line.5294"></a>
<FONT color="green">5295</FONT>        }<a name="line.5295"></a>
<FONT color="green">5296</FONT>    <a name="line.5296"></a>
<FONT color="green">5297</FONT>        // Count matches<a name="line.5297"></a>
<FONT color="green">5298</FONT>        //-----------------------------------------------------------------------<a name="line.5298"></a>
<FONT color="green">5299</FONT>        /**<a name="line.5299"></a>
<FONT color="green">5300</FONT>         * &lt;p&gt;Counts how many times the substring appears in the larger String.&lt;/p&gt;<a name="line.5300"></a>
<FONT color="green">5301</FONT>         *<a name="line.5301"></a>
<FONT color="green">5302</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; or empty ("") String input returns &lt;code&gt;0&lt;/code&gt;.&lt;/p&gt;<a name="line.5302"></a>
<FONT color="green">5303</FONT>         *<a name="line.5303"></a>
<FONT color="green">5304</FONT>         * &lt;pre&gt;<a name="line.5304"></a>
<FONT color="green">5305</FONT>         * StringUtils.countMatches(null, *)       = 0<a name="line.5305"></a>
<FONT color="green">5306</FONT>         * StringUtils.countMatches("", *)         = 0<a name="line.5306"></a>
<FONT color="green">5307</FONT>         * StringUtils.countMatches("abba", null)  = 0<a name="line.5307"></a>
<FONT color="green">5308</FONT>         * StringUtils.countMatches("abba", "")    = 0<a name="line.5308"></a>
<FONT color="green">5309</FONT>         * StringUtils.countMatches("abba", "a")   = 2<a name="line.5309"></a>
<FONT color="green">5310</FONT>         * StringUtils.countMatches("abba", "ab")  = 1<a name="line.5310"></a>
<FONT color="green">5311</FONT>         * StringUtils.countMatches("abba", "xxx") = 0<a name="line.5311"></a>
<FONT color="green">5312</FONT>         * &lt;/pre&gt;<a name="line.5312"></a>
<FONT color="green">5313</FONT>         *<a name="line.5313"></a>
<FONT color="green">5314</FONT>         * @param str  the String to check, may be null<a name="line.5314"></a>
<FONT color="green">5315</FONT>         * @param sub  the substring to count, may be null<a name="line.5315"></a>
<FONT color="green">5316</FONT>         * @return the number of occurrences, 0 if either String is &lt;code&gt;null&lt;/code&gt;<a name="line.5316"></a>
<FONT color="green">5317</FONT>         */<a name="line.5317"></a>
<FONT color="green">5318</FONT>        public static int countMatches(String str, String sub) {<a name="line.5318"></a>
<FONT color="green">5319</FONT>            if (isEmpty(str) || isEmpty(sub)) {<a name="line.5319"></a>
<FONT color="green">5320</FONT>                return 0;<a name="line.5320"></a>
<FONT color="green">5321</FONT>            }<a name="line.5321"></a>
<FONT color="green">5322</FONT>            int count = 0;<a name="line.5322"></a>
<FONT color="green">5323</FONT>            int idx = 0;<a name="line.5323"></a>
<FONT color="green">5324</FONT>            while ((idx = str.indexOf(sub, idx)) != INDEX_NOT_FOUND) {<a name="line.5324"></a>
<FONT color="green">5325</FONT>                count++;<a name="line.5325"></a>
<FONT color="green">5326</FONT>                idx += sub.length();<a name="line.5326"></a>
<FONT color="green">5327</FONT>            }<a name="line.5327"></a>
<FONT color="green">5328</FONT>            return count;<a name="line.5328"></a>
<FONT color="green">5329</FONT>        }<a name="line.5329"></a>
<FONT color="green">5330</FONT>    <a name="line.5330"></a>
<FONT color="green">5331</FONT>        // Character Tests<a name="line.5331"></a>
<FONT color="green">5332</FONT>        //-----------------------------------------------------------------------<a name="line.5332"></a>
<FONT color="green">5333</FONT>        /**<a name="line.5333"></a>
<FONT color="green">5334</FONT>         * &lt;p&gt;Checks if the String contains only unicode letters.&lt;/p&gt;<a name="line.5334"></a>
<FONT color="green">5335</FONT>         *<a name="line.5335"></a>
<FONT color="green">5336</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt; will return &lt;code&gt;false&lt;/code&gt;.<a name="line.5336"></a>
<FONT color="green">5337</FONT>         * An empty String (length()=0) will return &lt;code&gt;true&lt;/code&gt;.&lt;/p&gt;<a name="line.5337"></a>
<FONT color="green">5338</FONT>         *<a name="line.5338"></a>
<FONT color="green">5339</FONT>         * &lt;pre&gt;<a name="line.5339"></a>
<FONT color="green">5340</FONT>         * StringUtils.isAlpha(null)   = false<a name="line.5340"></a>
<FONT color="green">5341</FONT>         * StringUtils.isAlpha("")     = true<a name="line.5341"></a>
<FONT color="green">5342</FONT>         * StringUtils.isAlpha("  ")   = false<a name="line.5342"></a>
<FONT color="green">5343</FONT>         * StringUtils.isAlpha("abc")  = true<a name="line.5343"></a>
<FONT color="green">5344</FONT>         * StringUtils.isAlpha("ab2c") = false<a name="line.5344"></a>
<FONT color="green">5345</FONT>         * StringUtils.isAlpha("ab-c") = false<a name="line.5345"></a>
<FONT color="green">5346</FONT>         * &lt;/pre&gt;<a name="line.5346"></a>
<FONT color="green">5347</FONT>         *<a name="line.5347"></a>
<FONT color="green">5348</FONT>         * @param str  the String to check, may be null<a name="line.5348"></a>
<FONT color="green">5349</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if only contains letters, and is non-null<a name="line.5349"></a>
<FONT color="green">5350</FONT>         */<a name="line.5350"></a>
<FONT color="green">5351</FONT>        public static boolean isAlpha(String str) {<a name="line.5351"></a>
<FONT color="green">5352</FONT>            if (str == null) {<a name="line.5352"></a>
<FONT color="green">5353</FONT>                return false;<a name="line.5353"></a>
<FONT color="green">5354</FONT>            }<a name="line.5354"></a>
<FONT color="green">5355</FONT>            int sz = str.length();<a name="line.5355"></a>
<FONT color="green">5356</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.5356"></a>
<FONT color="green">5357</FONT>                if (Character.isLetter(str.charAt(i)) == false) {<a name="line.5357"></a>
<FONT color="green">5358</FONT>                    return false;<a name="line.5358"></a>
<FONT color="green">5359</FONT>                }<a name="line.5359"></a>
<FONT color="green">5360</FONT>            }<a name="line.5360"></a>
<FONT color="green">5361</FONT>            return true;<a name="line.5361"></a>
<FONT color="green">5362</FONT>        }<a name="line.5362"></a>
<FONT color="green">5363</FONT>    <a name="line.5363"></a>
<FONT color="green">5364</FONT>        /**<a name="line.5364"></a>
<FONT color="green">5365</FONT>         * &lt;p&gt;Checks if the String contains only unicode letters and<a name="line.5365"></a>
<FONT color="green">5366</FONT>         * space (' ').&lt;/p&gt;<a name="line.5366"></a>
<FONT color="green">5367</FONT>         *<a name="line.5367"></a>
<FONT color="green">5368</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt; will return &lt;code&gt;false&lt;/code&gt;<a name="line.5368"></a>
<FONT color="green">5369</FONT>         * An empty String (length()=0) will return &lt;code&gt;true&lt;/code&gt;.&lt;/p&gt;<a name="line.5369"></a>
<FONT color="green">5370</FONT>         *<a name="line.5370"></a>
<FONT color="green">5371</FONT>         * &lt;pre&gt;<a name="line.5371"></a>
<FONT color="green">5372</FONT>         * StringUtils.isAlphaSpace(null)   = false<a name="line.5372"></a>
<FONT color="green">5373</FONT>         * StringUtils.isAlphaSpace("")     = true<a name="line.5373"></a>
<FONT color="green">5374</FONT>         * StringUtils.isAlphaSpace("  ")   = true<a name="line.5374"></a>
<FONT color="green">5375</FONT>         * StringUtils.isAlphaSpace("abc")  = true<a name="line.5375"></a>
<FONT color="green">5376</FONT>         * StringUtils.isAlphaSpace("ab c") = true<a name="line.5376"></a>
<FONT color="green">5377</FONT>         * StringUtils.isAlphaSpace("ab2c") = false<a name="line.5377"></a>
<FONT color="green">5378</FONT>         * StringUtils.isAlphaSpace("ab-c") = false<a name="line.5378"></a>
<FONT color="green">5379</FONT>         * &lt;/pre&gt;<a name="line.5379"></a>
<FONT color="green">5380</FONT>         *<a name="line.5380"></a>
<FONT color="green">5381</FONT>         * @param str  the String to check, may be null<a name="line.5381"></a>
<FONT color="green">5382</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if only contains letters and space,<a name="line.5382"></a>
<FONT color="green">5383</FONT>         *  and is non-null<a name="line.5383"></a>
<FONT color="green">5384</FONT>         */<a name="line.5384"></a>
<FONT color="green">5385</FONT>        public static boolean isAlphaSpace(String str) {<a name="line.5385"></a>
<FONT color="green">5386</FONT>            if (str == null) {<a name="line.5386"></a>
<FONT color="green">5387</FONT>                return false;<a name="line.5387"></a>
<FONT color="green">5388</FONT>            }<a name="line.5388"></a>
<FONT color="green">5389</FONT>            int sz = str.length();<a name="line.5389"></a>
<FONT color="green">5390</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.5390"></a>
<FONT color="green">5391</FONT>                if ((Character.isLetter(str.charAt(i)) == false) &amp;&amp; (str.charAt(i) != ' ')) {<a name="line.5391"></a>
<FONT color="green">5392</FONT>                    return false;<a name="line.5392"></a>
<FONT color="green">5393</FONT>                }<a name="line.5393"></a>
<FONT color="green">5394</FONT>            }<a name="line.5394"></a>
<FONT color="green">5395</FONT>            return true;<a name="line.5395"></a>
<FONT color="green">5396</FONT>        }<a name="line.5396"></a>
<FONT color="green">5397</FONT>    <a name="line.5397"></a>
<FONT color="green">5398</FONT>        /**<a name="line.5398"></a>
<FONT color="green">5399</FONT>         * &lt;p&gt;Checks if the String contains only unicode letters or digits.&lt;/p&gt;<a name="line.5399"></a>
<FONT color="green">5400</FONT>         *<a name="line.5400"></a>
<FONT color="green">5401</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt; will return &lt;code&gt;false&lt;/code&gt;.<a name="line.5401"></a>
<FONT color="green">5402</FONT>         * An empty String (length()=0) will return &lt;code&gt;true&lt;/code&gt;.&lt;/p&gt;<a name="line.5402"></a>
<FONT color="green">5403</FONT>         *<a name="line.5403"></a>
<FONT color="green">5404</FONT>         * &lt;pre&gt;<a name="line.5404"></a>
<FONT color="green">5405</FONT>         * StringUtils.isAlphanumeric(null)   = false<a name="line.5405"></a>
<FONT color="green">5406</FONT>         * StringUtils.isAlphanumeric("")     = true<a name="line.5406"></a>
<FONT color="green">5407</FONT>         * StringUtils.isAlphanumeric("  ")   = false<a name="line.5407"></a>
<FONT color="green">5408</FONT>         * StringUtils.isAlphanumeric("abc")  = true<a name="line.5408"></a>
<FONT color="green">5409</FONT>         * StringUtils.isAlphanumeric("ab c") = false<a name="line.5409"></a>
<FONT color="green">5410</FONT>         * StringUtils.isAlphanumeric("ab2c") = true<a name="line.5410"></a>
<FONT color="green">5411</FONT>         * StringUtils.isAlphanumeric("ab-c") = false<a name="line.5411"></a>
<FONT color="green">5412</FONT>         * &lt;/pre&gt;<a name="line.5412"></a>
<FONT color="green">5413</FONT>         *<a name="line.5413"></a>
<FONT color="green">5414</FONT>         * @param str  the String to check, may be null<a name="line.5414"></a>
<FONT color="green">5415</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if only contains letters or digits,<a name="line.5415"></a>
<FONT color="green">5416</FONT>         *  and is non-null<a name="line.5416"></a>
<FONT color="green">5417</FONT>         */<a name="line.5417"></a>
<FONT color="green">5418</FONT>        public static boolean isAlphanumeric(String str) {<a name="line.5418"></a>
<FONT color="green">5419</FONT>            if (str == null) {<a name="line.5419"></a>
<FONT color="green">5420</FONT>                return false;<a name="line.5420"></a>
<FONT color="green">5421</FONT>            }<a name="line.5421"></a>
<FONT color="green">5422</FONT>            int sz = str.length();<a name="line.5422"></a>
<FONT color="green">5423</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.5423"></a>
<FONT color="green">5424</FONT>                if (Character.isLetterOrDigit(str.charAt(i)) == false) {<a name="line.5424"></a>
<FONT color="green">5425</FONT>                    return false;<a name="line.5425"></a>
<FONT color="green">5426</FONT>                }<a name="line.5426"></a>
<FONT color="green">5427</FONT>            }<a name="line.5427"></a>
<FONT color="green">5428</FONT>            return true;<a name="line.5428"></a>
<FONT color="green">5429</FONT>        }<a name="line.5429"></a>
<FONT color="green">5430</FONT>    <a name="line.5430"></a>
<FONT color="green">5431</FONT>        /**<a name="line.5431"></a>
<FONT color="green">5432</FONT>         * &lt;p&gt;Checks if the String contains only unicode letters, digits<a name="line.5432"></a>
<FONT color="green">5433</FONT>         * or space (&lt;code&gt;' '&lt;/code&gt;).&lt;/p&gt;<a name="line.5433"></a>
<FONT color="green">5434</FONT>         *<a name="line.5434"></a>
<FONT color="green">5435</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt; will return &lt;code&gt;false&lt;/code&gt;.<a name="line.5435"></a>
<FONT color="green">5436</FONT>         * An empty String (length()=0) will return &lt;code&gt;true&lt;/code&gt;.&lt;/p&gt;<a name="line.5436"></a>
<FONT color="green">5437</FONT>         *<a name="line.5437"></a>
<FONT color="green">5438</FONT>         * &lt;pre&gt;<a name="line.5438"></a>
<FONT color="green">5439</FONT>         * StringUtils.isAlphanumeric(null)   = false<a name="line.5439"></a>
<FONT color="green">5440</FONT>         * StringUtils.isAlphanumeric("")     = true<a name="line.5440"></a>
<FONT color="green">5441</FONT>         * StringUtils.isAlphanumeric("  ")   = true<a name="line.5441"></a>
<FONT color="green">5442</FONT>         * StringUtils.isAlphanumeric("abc")  = true<a name="line.5442"></a>
<FONT color="green">5443</FONT>         * StringUtils.isAlphanumeric("ab c") = true<a name="line.5443"></a>
<FONT color="green">5444</FONT>         * StringUtils.isAlphanumeric("ab2c") = true<a name="line.5444"></a>
<FONT color="green">5445</FONT>         * StringUtils.isAlphanumeric("ab-c") = false<a name="line.5445"></a>
<FONT color="green">5446</FONT>         * &lt;/pre&gt;<a name="line.5446"></a>
<FONT color="green">5447</FONT>         *<a name="line.5447"></a>
<FONT color="green">5448</FONT>         * @param str  the String to check, may be null<a name="line.5448"></a>
<FONT color="green">5449</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if only contains letters, digits or space,<a name="line.5449"></a>
<FONT color="green">5450</FONT>         *  and is non-null<a name="line.5450"></a>
<FONT color="green">5451</FONT>         */<a name="line.5451"></a>
<FONT color="green">5452</FONT>        public static boolean isAlphanumericSpace(String str) {<a name="line.5452"></a>
<FONT color="green">5453</FONT>            if (str == null) {<a name="line.5453"></a>
<FONT color="green">5454</FONT>                return false;<a name="line.5454"></a>
<FONT color="green">5455</FONT>            }<a name="line.5455"></a>
<FONT color="green">5456</FONT>            int sz = str.length();<a name="line.5456"></a>
<FONT color="green">5457</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.5457"></a>
<FONT color="green">5458</FONT>                if ((Character.isLetterOrDigit(str.charAt(i)) == false) &amp;&amp; (str.charAt(i) != ' ')) {<a name="line.5458"></a>
<FONT color="green">5459</FONT>                    return false;<a name="line.5459"></a>
<FONT color="green">5460</FONT>                }<a name="line.5460"></a>
<FONT color="green">5461</FONT>            }<a name="line.5461"></a>
<FONT color="green">5462</FONT>            return true;<a name="line.5462"></a>
<FONT color="green">5463</FONT>        }<a name="line.5463"></a>
<FONT color="green">5464</FONT>    <a name="line.5464"></a>
<FONT color="green">5465</FONT>        /**<a name="line.5465"></a>
<FONT color="green">5466</FONT>         * &lt;p&gt;Checks if the string contains only ASCII printable characters.&lt;/p&gt;<a name="line.5466"></a>
<FONT color="green">5467</FONT>         * <a name="line.5467"></a>
<FONT color="green">5468</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt; will return &lt;code&gt;false&lt;/code&gt;.<a name="line.5468"></a>
<FONT color="green">5469</FONT>         * An empty String (length()=0) will return &lt;code&gt;true&lt;/code&gt;.&lt;/p&gt;<a name="line.5469"></a>
<FONT color="green">5470</FONT>         * <a name="line.5470"></a>
<FONT color="green">5471</FONT>         * &lt;pre&gt;<a name="line.5471"></a>
<FONT color="green">5472</FONT>         * StringUtils.isAsciiPrintable(null)     = false<a name="line.5472"></a>
<FONT color="green">5473</FONT>         * StringUtils.isAsciiPrintable("")       = true<a name="line.5473"></a>
<FONT color="green">5474</FONT>         * StringUtils.isAsciiPrintable(" ")      = true<a name="line.5474"></a>
<FONT color="green">5475</FONT>         * StringUtils.isAsciiPrintable("Ceki")   = true<a name="line.5475"></a>
<FONT color="green">5476</FONT>         * StringUtils.isAsciiPrintable("ab2c")   = true<a name="line.5476"></a>
<FONT color="green">5477</FONT>         * StringUtils.isAsciiPrintable("!ab-c~") = true<a name="line.5477"></a>
<FONT color="green">5478</FONT>         * StringUtils.isAsciiPrintable("\u0020") = true<a name="line.5478"></a>
<FONT color="green">5479</FONT>         * StringUtils.isAsciiPrintable("\u0021") = true<a name="line.5479"></a>
<FONT color="green">5480</FONT>         * StringUtils.isAsciiPrintable("\u007e") = true<a name="line.5480"></a>
<FONT color="green">5481</FONT>         * StringUtils.isAsciiPrintable("\u007f") = false<a name="line.5481"></a>
<FONT color="green">5482</FONT>         * StringUtils.isAsciiPrintable("Ceki G\u00fclc\u00fc") = false<a name="line.5482"></a>
<FONT color="green">5483</FONT>         * &lt;/pre&gt;<a name="line.5483"></a>
<FONT color="green">5484</FONT>         *<a name="line.5484"></a>
<FONT color="green">5485</FONT>         * @param str the string to check, may be null<a name="line.5485"></a>
<FONT color="green">5486</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if every character is in the range<a name="line.5486"></a>
<FONT color="green">5487</FONT>         *  32 thru 126<a name="line.5487"></a>
<FONT color="green">5488</FONT>         * @since 2.1<a name="line.5488"></a>
<FONT color="green">5489</FONT>         */<a name="line.5489"></a>
<FONT color="green">5490</FONT>        public static boolean isAsciiPrintable(String str) {<a name="line.5490"></a>
<FONT color="green">5491</FONT>            if (str == null) {<a name="line.5491"></a>
<FONT color="green">5492</FONT>                return false;<a name="line.5492"></a>
<FONT color="green">5493</FONT>            }<a name="line.5493"></a>
<FONT color="green">5494</FONT>            int sz = str.length();<a name="line.5494"></a>
<FONT color="green">5495</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.5495"></a>
<FONT color="green">5496</FONT>                if (CharUtils.isAsciiPrintable(str.charAt(i)) == false) {<a name="line.5496"></a>
<FONT color="green">5497</FONT>                    return false;<a name="line.5497"></a>
<FONT color="green">5498</FONT>                }<a name="line.5498"></a>
<FONT color="green">5499</FONT>            }<a name="line.5499"></a>
<FONT color="green">5500</FONT>            return true;<a name="line.5500"></a>
<FONT color="green">5501</FONT>        }<a name="line.5501"></a>
<FONT color="green">5502</FONT>    <a name="line.5502"></a>
<FONT color="green">5503</FONT>        /**<a name="line.5503"></a>
<FONT color="green">5504</FONT>         * &lt;p&gt;Checks if the String contains only unicode digits.<a name="line.5504"></a>
<FONT color="green">5505</FONT>         * A decimal point is not a unicode digit and returns false.&lt;/p&gt;<a name="line.5505"></a>
<FONT color="green">5506</FONT>         *<a name="line.5506"></a>
<FONT color="green">5507</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt; will return &lt;code&gt;false&lt;/code&gt;.<a name="line.5507"></a>
<FONT color="green">5508</FONT>         * An empty String (length()=0) will return &lt;code&gt;true&lt;/code&gt;.&lt;/p&gt;<a name="line.5508"></a>
<FONT color="green">5509</FONT>         *<a name="line.5509"></a>
<FONT color="green">5510</FONT>         * &lt;pre&gt;<a name="line.5510"></a>
<FONT color="green">5511</FONT>         * StringUtils.isNumeric(null)   = false<a name="line.5511"></a>
<FONT color="green">5512</FONT>         * StringUtils.isNumeric("")     = true<a name="line.5512"></a>
<FONT color="green">5513</FONT>         * StringUtils.isNumeric("  ")   = false<a name="line.5513"></a>
<FONT color="green">5514</FONT>         * StringUtils.isNumeric("123")  = true<a name="line.5514"></a>
<FONT color="green">5515</FONT>         * StringUtils.isNumeric("12 3") = false<a name="line.5515"></a>
<FONT color="green">5516</FONT>         * StringUtils.isNumeric("ab2c") = false<a name="line.5516"></a>
<FONT color="green">5517</FONT>         * StringUtils.isNumeric("12-3") = false<a name="line.5517"></a>
<FONT color="green">5518</FONT>         * StringUtils.isNumeric("12.3") = false<a name="line.5518"></a>
<FONT color="green">5519</FONT>         * &lt;/pre&gt;<a name="line.5519"></a>
<FONT color="green">5520</FONT>         *<a name="line.5520"></a>
<FONT color="green">5521</FONT>         * @param str  the String to check, may be null<a name="line.5521"></a>
<FONT color="green">5522</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if only contains digits, and is non-null<a name="line.5522"></a>
<FONT color="green">5523</FONT>         */<a name="line.5523"></a>
<FONT color="green">5524</FONT>        public static boolean isNumeric(String str) {<a name="line.5524"></a>
<FONT color="green">5525</FONT>            if (str == null) {<a name="line.5525"></a>
<FONT color="green">5526</FONT>                return false;<a name="line.5526"></a>
<FONT color="green">5527</FONT>            }<a name="line.5527"></a>
<FONT color="green">5528</FONT>            int sz = str.length();<a name="line.5528"></a>
<FONT color="green">5529</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.5529"></a>
<FONT color="green">5530</FONT>                if (Character.isDigit(str.charAt(i)) == false) {<a name="line.5530"></a>
<FONT color="green">5531</FONT>                    return false;<a name="line.5531"></a>
<FONT color="green">5532</FONT>                }<a name="line.5532"></a>
<FONT color="green">5533</FONT>            }<a name="line.5533"></a>
<FONT color="green">5534</FONT>            return true;<a name="line.5534"></a>
<FONT color="green">5535</FONT>        }<a name="line.5535"></a>
<FONT color="green">5536</FONT>    <a name="line.5536"></a>
<FONT color="green">5537</FONT>        /**<a name="line.5537"></a>
<FONT color="green">5538</FONT>         * &lt;p&gt;Checks if the String contains only unicode digits or space<a name="line.5538"></a>
<FONT color="green">5539</FONT>         * (&lt;code&gt;' '&lt;/code&gt;).<a name="line.5539"></a>
<FONT color="green">5540</FONT>         * A decimal point is not a unicode digit and returns false.&lt;/p&gt;<a name="line.5540"></a>
<FONT color="green">5541</FONT>         *<a name="line.5541"></a>
<FONT color="green">5542</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt; will return &lt;code&gt;false&lt;/code&gt;.<a name="line.5542"></a>
<FONT color="green">5543</FONT>         * An empty String (length()=0) will return &lt;code&gt;true&lt;/code&gt;.&lt;/p&gt;<a name="line.5543"></a>
<FONT color="green">5544</FONT>         *<a name="line.5544"></a>
<FONT color="green">5545</FONT>         * &lt;pre&gt;<a name="line.5545"></a>
<FONT color="green">5546</FONT>         * StringUtils.isNumeric(null)   = false<a name="line.5546"></a>
<FONT color="green">5547</FONT>         * StringUtils.isNumeric("")     = true<a name="line.5547"></a>
<FONT color="green">5548</FONT>         * StringUtils.isNumeric("  ")   = true<a name="line.5548"></a>
<FONT color="green">5549</FONT>         * StringUtils.isNumeric("123")  = true<a name="line.5549"></a>
<FONT color="green">5550</FONT>         * StringUtils.isNumeric("12 3") = true<a name="line.5550"></a>
<FONT color="green">5551</FONT>         * StringUtils.isNumeric("ab2c") = false<a name="line.5551"></a>
<FONT color="green">5552</FONT>         * StringUtils.isNumeric("12-3") = false<a name="line.5552"></a>
<FONT color="green">5553</FONT>         * StringUtils.isNumeric("12.3") = false<a name="line.5553"></a>
<FONT color="green">5554</FONT>         * &lt;/pre&gt;<a name="line.5554"></a>
<FONT color="green">5555</FONT>         *<a name="line.5555"></a>
<FONT color="green">5556</FONT>         * @param str  the String to check, may be null<a name="line.5556"></a>
<FONT color="green">5557</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if only contains digits or space,<a name="line.5557"></a>
<FONT color="green">5558</FONT>         *  and is non-null<a name="line.5558"></a>
<FONT color="green">5559</FONT>         */<a name="line.5559"></a>
<FONT color="green">5560</FONT>        public static boolean isNumericSpace(String str) {<a name="line.5560"></a>
<FONT color="green">5561</FONT>            if (str == null) {<a name="line.5561"></a>
<FONT color="green">5562</FONT>                return false;<a name="line.5562"></a>
<FONT color="green">5563</FONT>            }<a name="line.5563"></a>
<FONT color="green">5564</FONT>            int sz = str.length();<a name="line.5564"></a>
<FONT color="green">5565</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.5565"></a>
<FONT color="green">5566</FONT>                if ((Character.isDigit(str.charAt(i)) == false) &amp;&amp; (str.charAt(i) != ' ')) {<a name="line.5566"></a>
<FONT color="green">5567</FONT>                    return false;<a name="line.5567"></a>
<FONT color="green">5568</FONT>                }<a name="line.5568"></a>
<FONT color="green">5569</FONT>            }<a name="line.5569"></a>
<FONT color="green">5570</FONT>            return true;<a name="line.5570"></a>
<FONT color="green">5571</FONT>        }<a name="line.5571"></a>
<FONT color="green">5572</FONT>    <a name="line.5572"></a>
<FONT color="green">5573</FONT>        /**<a name="line.5573"></a>
<FONT color="green">5574</FONT>         * &lt;p&gt;Checks if the String contains only whitespace.&lt;/p&gt;<a name="line.5574"></a>
<FONT color="green">5575</FONT>         *<a name="line.5575"></a>
<FONT color="green">5576</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt; will return &lt;code&gt;false&lt;/code&gt;.<a name="line.5576"></a>
<FONT color="green">5577</FONT>         * An empty String (length()=0) will return &lt;code&gt;true&lt;/code&gt;.&lt;/p&gt;<a name="line.5577"></a>
<FONT color="green">5578</FONT>         *<a name="line.5578"></a>
<FONT color="green">5579</FONT>         * &lt;pre&gt;<a name="line.5579"></a>
<FONT color="green">5580</FONT>         * StringUtils.isWhitespace(null)   = false<a name="line.5580"></a>
<FONT color="green">5581</FONT>         * StringUtils.isWhitespace("")     = true<a name="line.5581"></a>
<FONT color="green">5582</FONT>         * StringUtils.isWhitespace("  ")   = true<a name="line.5582"></a>
<FONT color="green">5583</FONT>         * StringUtils.isWhitespace("abc")  = false<a name="line.5583"></a>
<FONT color="green">5584</FONT>         * StringUtils.isWhitespace("ab2c") = false<a name="line.5584"></a>
<FONT color="green">5585</FONT>         * StringUtils.isWhitespace("ab-c") = false<a name="line.5585"></a>
<FONT color="green">5586</FONT>         * &lt;/pre&gt;<a name="line.5586"></a>
<FONT color="green">5587</FONT>         *<a name="line.5587"></a>
<FONT color="green">5588</FONT>         * @param str  the String to check, may be null<a name="line.5588"></a>
<FONT color="green">5589</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if only contains whitespace, and is non-null<a name="line.5589"></a>
<FONT color="green">5590</FONT>         * @since 2.0<a name="line.5590"></a>
<FONT color="green">5591</FONT>         */<a name="line.5591"></a>
<FONT color="green">5592</FONT>        public static boolean isWhitespace(String str) {<a name="line.5592"></a>
<FONT color="green">5593</FONT>            if (str == null) {<a name="line.5593"></a>
<FONT color="green">5594</FONT>                return false;<a name="line.5594"></a>
<FONT color="green">5595</FONT>            }<a name="line.5595"></a>
<FONT color="green">5596</FONT>            int sz = str.length();<a name="line.5596"></a>
<FONT color="green">5597</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.5597"></a>
<FONT color="green">5598</FONT>                if ((Character.isWhitespace(str.charAt(i)) == false)) {<a name="line.5598"></a>
<FONT color="green">5599</FONT>                    return false;<a name="line.5599"></a>
<FONT color="green">5600</FONT>                }<a name="line.5600"></a>
<FONT color="green">5601</FONT>            }<a name="line.5601"></a>
<FONT color="green">5602</FONT>            return true;<a name="line.5602"></a>
<FONT color="green">5603</FONT>        }<a name="line.5603"></a>
<FONT color="green">5604</FONT>    <a name="line.5604"></a>
<FONT color="green">5605</FONT>        /**<a name="line.5605"></a>
<FONT color="green">5606</FONT>         * &lt;p&gt;Checks if the String contains only lowercase characters.&lt;/p&gt;<a name="line.5606"></a>
<FONT color="green">5607</FONT>         *<a name="line.5607"></a>
<FONT color="green">5608</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt; will return &lt;code&gt;false&lt;/code&gt;.<a name="line.5608"></a>
<FONT color="green">5609</FONT>         * An empty String (length()=0) will return &lt;code&gt;false&lt;/code&gt;.&lt;/p&gt;<a name="line.5609"></a>
<FONT color="green">5610</FONT>         *<a name="line.5610"></a>
<FONT color="green">5611</FONT>         * &lt;pre&gt;<a name="line.5611"></a>
<FONT color="green">5612</FONT>         * StringUtils.isAllLowerCase(null)   = false<a name="line.5612"></a>
<FONT color="green">5613</FONT>         * StringUtils.isAllLowerCase("")     = false<a name="line.5613"></a>
<FONT color="green">5614</FONT>         * StringUtils.isAllLowerCase("  ")   = false<a name="line.5614"></a>
<FONT color="green">5615</FONT>         * StringUtils.isAllLowerCase("abc")  = true<a name="line.5615"></a>
<FONT color="green">5616</FONT>         * StringUtils.isAllLowerCase("abC") = false<a name="line.5616"></a>
<FONT color="green">5617</FONT>         * &lt;/pre&gt;<a name="line.5617"></a>
<FONT color="green">5618</FONT>         *<a name="line.5618"></a>
<FONT color="green">5619</FONT>         * @param str  the String to check, may be null<a name="line.5619"></a>
<FONT color="green">5620</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if only contains lowercase characters, and is non-null<a name="line.5620"></a>
<FONT color="green">5621</FONT>         * @since 2.5<a name="line.5621"></a>
<FONT color="green">5622</FONT>         */<a name="line.5622"></a>
<FONT color="green">5623</FONT>        public static boolean isAllLowerCase(String str) {<a name="line.5623"></a>
<FONT color="green">5624</FONT>            if (str == null || isEmpty(str)) {<a name="line.5624"></a>
<FONT color="green">5625</FONT>                return false;<a name="line.5625"></a>
<FONT color="green">5626</FONT>            }<a name="line.5626"></a>
<FONT color="green">5627</FONT>            int sz = str.length();<a name="line.5627"></a>
<FONT color="green">5628</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.5628"></a>
<FONT color="green">5629</FONT>                if (Character.isLowerCase(str.charAt(i)) == false) {<a name="line.5629"></a>
<FONT color="green">5630</FONT>                    return false;<a name="line.5630"></a>
<FONT color="green">5631</FONT>                }<a name="line.5631"></a>
<FONT color="green">5632</FONT>            }<a name="line.5632"></a>
<FONT color="green">5633</FONT>            return true;<a name="line.5633"></a>
<FONT color="green">5634</FONT>        }<a name="line.5634"></a>
<FONT color="green">5635</FONT>    <a name="line.5635"></a>
<FONT color="green">5636</FONT>        /**<a name="line.5636"></a>
<FONT color="green">5637</FONT>         * &lt;p&gt;Checks if the String contains only uppercase characters.&lt;/p&gt;<a name="line.5637"></a>
<FONT color="green">5638</FONT>         *<a name="line.5638"></a>
<FONT color="green">5639</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt; will return &lt;code&gt;false&lt;/code&gt;.<a name="line.5639"></a>
<FONT color="green">5640</FONT>         * An empty String (length()=0) will return &lt;code&gt;false&lt;/code&gt;.&lt;/p&gt;<a name="line.5640"></a>
<FONT color="green">5641</FONT>         *<a name="line.5641"></a>
<FONT color="green">5642</FONT>         * &lt;pre&gt;<a name="line.5642"></a>
<FONT color="green">5643</FONT>         * StringUtils.isAllUpperCase(null)   = false<a name="line.5643"></a>
<FONT color="green">5644</FONT>         * StringUtils.isAllUpperCase("")     = false<a name="line.5644"></a>
<FONT color="green">5645</FONT>         * StringUtils.isAllUpperCase("  ")   = false<a name="line.5645"></a>
<FONT color="green">5646</FONT>         * StringUtils.isAllUpperCase("ABC")  = true<a name="line.5646"></a>
<FONT color="green">5647</FONT>         * StringUtils.isAllUpperCase("aBC") = false<a name="line.5647"></a>
<FONT color="green">5648</FONT>         * &lt;/pre&gt;<a name="line.5648"></a>
<FONT color="green">5649</FONT>         *<a name="line.5649"></a>
<FONT color="green">5650</FONT>         * @param str  the String to check, may be null<a name="line.5650"></a>
<FONT color="green">5651</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if only contains uppercase characters, and is non-null<a name="line.5651"></a>
<FONT color="green">5652</FONT>         * @since 2.5<a name="line.5652"></a>
<FONT color="green">5653</FONT>         */<a name="line.5653"></a>
<FONT color="green">5654</FONT>        public static boolean isAllUpperCase(String str) {<a name="line.5654"></a>
<FONT color="green">5655</FONT>            if (str == null || isEmpty(str)) {<a name="line.5655"></a>
<FONT color="green">5656</FONT>                return false;<a name="line.5656"></a>
<FONT color="green">5657</FONT>            }<a name="line.5657"></a>
<FONT color="green">5658</FONT>            int sz = str.length();<a name="line.5658"></a>
<FONT color="green">5659</FONT>            for (int i = 0; i &lt; sz; i++) {<a name="line.5659"></a>
<FONT color="green">5660</FONT>                if (Character.isUpperCase(str.charAt(i)) == false) {<a name="line.5660"></a>
<FONT color="green">5661</FONT>                    return false;<a name="line.5661"></a>
<FONT color="green">5662</FONT>                }<a name="line.5662"></a>
<FONT color="green">5663</FONT>            }<a name="line.5663"></a>
<FONT color="green">5664</FONT>            return true;<a name="line.5664"></a>
<FONT color="green">5665</FONT>        }<a name="line.5665"></a>
<FONT color="green">5666</FONT>    <a name="line.5666"></a>
<FONT color="green">5667</FONT>        // Defaults<a name="line.5667"></a>
<FONT color="green">5668</FONT>        //-----------------------------------------------------------------------<a name="line.5668"></a>
<FONT color="green">5669</FONT>        /**<a name="line.5669"></a>
<FONT color="green">5670</FONT>         * &lt;p&gt;Returns either the passed in String,<a name="line.5670"></a>
<FONT color="green">5671</FONT>         * or if the String is &lt;code&gt;null&lt;/code&gt;, an empty String ("").&lt;/p&gt;<a name="line.5671"></a>
<FONT color="green">5672</FONT>         *<a name="line.5672"></a>
<FONT color="green">5673</FONT>         * &lt;pre&gt;<a name="line.5673"></a>
<FONT color="green">5674</FONT>         * StringUtils.defaultString(null)  = ""<a name="line.5674"></a>
<FONT color="green">5675</FONT>         * StringUtils.defaultString("")    = ""<a name="line.5675"></a>
<FONT color="green">5676</FONT>         * StringUtils.defaultString("bat") = "bat"<a name="line.5676"></a>
<FONT color="green">5677</FONT>         * &lt;/pre&gt;<a name="line.5677"></a>
<FONT color="green">5678</FONT>         *<a name="line.5678"></a>
<FONT color="green">5679</FONT>         * @see ObjectUtils#toString(Object)<a name="line.5679"></a>
<FONT color="green">5680</FONT>         * @see String#valueOf(Object)<a name="line.5680"></a>
<FONT color="green">5681</FONT>         * @param str  the String to check, may be null<a name="line.5681"></a>
<FONT color="green">5682</FONT>         * @return the passed in String, or the empty String if it<a name="line.5682"></a>
<FONT color="green">5683</FONT>         *  was &lt;code&gt;null&lt;/code&gt;<a name="line.5683"></a>
<FONT color="green">5684</FONT>         */<a name="line.5684"></a>
<FONT color="green">5685</FONT>        public static String defaultString(String str) {<a name="line.5685"></a>
<FONT color="green">5686</FONT>            return str == null ? EMPTY : str;<a name="line.5686"></a>
<FONT color="green">5687</FONT>        }<a name="line.5687"></a>
<FONT color="green">5688</FONT>    <a name="line.5688"></a>
<FONT color="green">5689</FONT>        /**<a name="line.5689"></a>
<FONT color="green">5690</FONT>         * &lt;p&gt;Returns either the passed in String, or if the String is<a name="line.5690"></a>
<FONT color="green">5691</FONT>         * &lt;code&gt;null&lt;/code&gt;, the value of &lt;code&gt;defaultStr&lt;/code&gt;.&lt;/p&gt;<a name="line.5691"></a>
<FONT color="green">5692</FONT>         *<a name="line.5692"></a>
<FONT color="green">5693</FONT>         * &lt;pre&gt;<a name="line.5693"></a>
<FONT color="green">5694</FONT>         * StringUtils.defaultString(null, "NULL")  = "NULL"<a name="line.5694"></a>
<FONT color="green">5695</FONT>         * StringUtils.defaultString("", "NULL")    = ""<a name="line.5695"></a>
<FONT color="green">5696</FONT>         * StringUtils.defaultString("bat", "NULL") = "bat"<a name="line.5696"></a>
<FONT color="green">5697</FONT>         * &lt;/pre&gt;<a name="line.5697"></a>
<FONT color="green">5698</FONT>         *<a name="line.5698"></a>
<FONT color="green">5699</FONT>         * @see ObjectUtils#toString(Object,String)<a name="line.5699"></a>
<FONT color="green">5700</FONT>         * @see String#valueOf(Object)<a name="line.5700"></a>
<FONT color="green">5701</FONT>         * @param str  the String to check, may be null<a name="line.5701"></a>
<FONT color="green">5702</FONT>         * @param defaultStr  the default String to return<a name="line.5702"></a>
<FONT color="green">5703</FONT>         *  if the input is &lt;code&gt;null&lt;/code&gt;, may be null<a name="line.5703"></a>
<FONT color="green">5704</FONT>         * @return the passed in String, or the default if it was &lt;code&gt;null&lt;/code&gt;<a name="line.5704"></a>
<FONT color="green">5705</FONT>         */<a name="line.5705"></a>
<FONT color="green">5706</FONT>        public static String defaultString(String str, String defaultStr) {<a name="line.5706"></a>
<FONT color="green">5707</FONT>            return str == null ? defaultStr : str;<a name="line.5707"></a>
<FONT color="green">5708</FONT>        }<a name="line.5708"></a>
<FONT color="green">5709</FONT>    <a name="line.5709"></a>
<FONT color="green">5710</FONT>        /**<a name="line.5710"></a>
<FONT color="green">5711</FONT>         * &lt;p&gt;Returns either the passed in String, or if the String is<a name="line.5711"></a>
<FONT color="green">5712</FONT>         * whitespace, empty ("") or &lt;code&gt;null&lt;/code&gt;, the value of &lt;code&gt;defaultStr&lt;/code&gt;.&lt;/p&gt;<a name="line.5712"></a>
<FONT color="green">5713</FONT>         *<a name="line.5713"></a>
<FONT color="green">5714</FONT>         * &lt;pre&gt;<a name="line.5714"></a>
<FONT color="green">5715</FONT>         * StringUtils.defaultIfBlank(null, "NULL")  = "NULL"<a name="line.5715"></a>
<FONT color="green">5716</FONT>         * StringUtils.defaultIfBlank("", "NULL")    = "NULL"<a name="line.5716"></a>
<FONT color="green">5717</FONT>         * StringUtils.defaultIfBlank(" ", "NULL")   = "NULL"<a name="line.5717"></a>
<FONT color="green">5718</FONT>         * StringUtils.defaultIfBlank("bat", "NULL") = "bat"<a name="line.5718"></a>
<FONT color="green">5719</FONT>         * StringUtils.defaultIfBlank("", null)      = null<a name="line.5719"></a>
<FONT color="green">5720</FONT>         * &lt;/pre&gt;<a name="line.5720"></a>
<FONT color="green">5721</FONT>         * @param str the String to check, may be null<a name="line.5721"></a>
<FONT color="green">5722</FONT>         * @param defaultStr  the default String to return<a name="line.5722"></a>
<FONT color="green">5723</FONT>         *  if the input is whitespace, empty ("") or &lt;code&gt;null&lt;/code&gt;, may be null<a name="line.5723"></a>
<FONT color="green">5724</FONT>         * @return the passed in String, or the default<a name="line.5724"></a>
<FONT color="green">5725</FONT>         * @see StringUtils#defaultString(String, String)<a name="line.5725"></a>
<FONT color="green">5726</FONT>         * @since 2.6<a name="line.5726"></a>
<FONT color="green">5727</FONT>         */<a name="line.5727"></a>
<FONT color="green">5728</FONT>        public static String defaultIfBlank(String str, String defaultStr) {<a name="line.5728"></a>
<FONT color="green">5729</FONT>            return StringUtils.isBlank(str) ? defaultStr : str;<a name="line.5729"></a>
<FONT color="green">5730</FONT>        }<a name="line.5730"></a>
<FONT color="green">5731</FONT>    <a name="line.5731"></a>
<FONT color="green">5732</FONT>        /**<a name="line.5732"></a>
<FONT color="green">5733</FONT>         * &lt;p&gt;Returns either the passed in String, or if the String is<a name="line.5733"></a>
<FONT color="green">5734</FONT>         * empty or &lt;code&gt;null&lt;/code&gt;, the value of &lt;code&gt;defaultStr&lt;/code&gt;.&lt;/p&gt;<a name="line.5734"></a>
<FONT color="green">5735</FONT>         *<a name="line.5735"></a>
<FONT color="green">5736</FONT>         * &lt;pre&gt;<a name="line.5736"></a>
<FONT color="green">5737</FONT>         * StringUtils.defaultIfEmpty(null, "NULL")  = "NULL"<a name="line.5737"></a>
<FONT color="green">5738</FONT>         * StringUtils.defaultIfEmpty("", "NULL")    = "NULL"<a name="line.5738"></a>
<FONT color="green">5739</FONT>         * StringUtils.defaultIfEmpty("bat", "NULL") = "bat"<a name="line.5739"></a>
<FONT color="green">5740</FONT>         * StringUtils.defaultIfEmpty("", null)      = null<a name="line.5740"></a>
<FONT color="green">5741</FONT>         * &lt;/pre&gt;<a name="line.5741"></a>
<FONT color="green">5742</FONT>         *<a name="line.5742"></a>
<FONT color="green">5743</FONT>         * @param str  the String to check, may be null<a name="line.5743"></a>
<FONT color="green">5744</FONT>         * @param defaultStr  the default String to return<a name="line.5744"></a>
<FONT color="green">5745</FONT>         *  if the input is empty ("") or &lt;code&gt;null&lt;/code&gt;, may be null<a name="line.5745"></a>
<FONT color="green">5746</FONT>         * @return the passed in String, or the default<a name="line.5746"></a>
<FONT color="green">5747</FONT>         * @see StringUtils#defaultString(String, String)<a name="line.5747"></a>
<FONT color="green">5748</FONT>         */<a name="line.5748"></a>
<FONT color="green">5749</FONT>        public static String defaultIfEmpty(String str, String defaultStr) {<a name="line.5749"></a>
<FONT color="green">5750</FONT>            return StringUtils.isEmpty(str) ? defaultStr : str;<a name="line.5750"></a>
<FONT color="green">5751</FONT>        }<a name="line.5751"></a>
<FONT color="green">5752</FONT>    <a name="line.5752"></a>
<FONT color="green">5753</FONT>        // Reversing<a name="line.5753"></a>
<FONT color="green">5754</FONT>        //-----------------------------------------------------------------------<a name="line.5754"></a>
<FONT color="green">5755</FONT>        /**<a name="line.5755"></a>
<FONT color="green">5756</FONT>         * &lt;p&gt;Reverses a String as per {@link StrBuilder#reverse()}.&lt;/p&gt;<a name="line.5756"></a>
<FONT color="green">5757</FONT>         *<a name="line.5757"></a>
<FONT color="green">5758</FONT>         * &lt;p&gt;A &lt;code&gt;null&lt;/code&gt; String returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.5758"></a>
<FONT color="green">5759</FONT>         *<a name="line.5759"></a>
<FONT color="green">5760</FONT>         * &lt;pre&gt;<a name="line.5760"></a>
<FONT color="green">5761</FONT>         * StringUtils.reverse(null)  = null<a name="line.5761"></a>
<FONT color="green">5762</FONT>         * StringUtils.reverse("")    = ""<a name="line.5762"></a>
<FONT color="green">5763</FONT>         * StringUtils.reverse("bat") = "tab"<a name="line.5763"></a>
<FONT color="green">5764</FONT>         * &lt;/pre&gt;<a name="line.5764"></a>
<FONT color="green">5765</FONT>         *<a name="line.5765"></a>
<FONT color="green">5766</FONT>         * @param str  the String to reverse, may be null<a name="line.5766"></a>
<FONT color="green">5767</FONT>         * @return the reversed String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5767"></a>
<FONT color="green">5768</FONT>         */<a name="line.5768"></a>
<FONT color="green">5769</FONT>        public static String reverse(String str) {<a name="line.5769"></a>
<FONT color="green">5770</FONT>            if (str == null) {<a name="line.5770"></a>
<FONT color="green">5771</FONT>                return null;<a name="line.5771"></a>
<FONT color="green">5772</FONT>            }<a name="line.5772"></a>
<FONT color="green">5773</FONT>            return new StrBuilder(str).reverse().toString();<a name="line.5773"></a>
<FONT color="green">5774</FONT>        }<a name="line.5774"></a>
<FONT color="green">5775</FONT>    <a name="line.5775"></a>
<FONT color="green">5776</FONT>        /**<a name="line.5776"></a>
<FONT color="green">5777</FONT>         * &lt;p&gt;Reverses a String that is delimited by a specific character.&lt;/p&gt;<a name="line.5777"></a>
<FONT color="green">5778</FONT>         *<a name="line.5778"></a>
<FONT color="green">5779</FONT>         * &lt;p&gt;The Strings between the delimiters are not reversed.<a name="line.5779"></a>
<FONT color="green">5780</FONT>         * Thus java.lang.String becomes String.lang.java (if the delimiter<a name="line.5780"></a>
<FONT color="green">5781</FONT>         * is &lt;code&gt;'.'&lt;/code&gt;).&lt;/p&gt;<a name="line.5781"></a>
<FONT color="green">5782</FONT>         *<a name="line.5782"></a>
<FONT color="green">5783</FONT>         * &lt;pre&gt;<a name="line.5783"></a>
<FONT color="green">5784</FONT>         * StringUtils.reverseDelimited(null, *)      = null<a name="line.5784"></a>
<FONT color="green">5785</FONT>         * StringUtils.reverseDelimited("", *)        = ""<a name="line.5785"></a>
<FONT color="green">5786</FONT>         * StringUtils.reverseDelimited("a.b.c", 'x') = "a.b.c"<a name="line.5786"></a>
<FONT color="green">5787</FONT>         * StringUtils.reverseDelimited("a.b.c", ".") = "c.b.a"<a name="line.5787"></a>
<FONT color="green">5788</FONT>         * &lt;/pre&gt;<a name="line.5788"></a>
<FONT color="green">5789</FONT>         *<a name="line.5789"></a>
<FONT color="green">5790</FONT>         * @param str  the String to reverse, may be null<a name="line.5790"></a>
<FONT color="green">5791</FONT>         * @param separatorChar  the separator character to use<a name="line.5791"></a>
<FONT color="green">5792</FONT>         * @return the reversed String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5792"></a>
<FONT color="green">5793</FONT>         * @since 2.0<a name="line.5793"></a>
<FONT color="green">5794</FONT>         */<a name="line.5794"></a>
<FONT color="green">5795</FONT>        public static String reverseDelimited(String str, char separatorChar) {<a name="line.5795"></a>
<FONT color="green">5796</FONT>            if (str == null) {<a name="line.5796"></a>
<FONT color="green">5797</FONT>                return null;<a name="line.5797"></a>
<FONT color="green">5798</FONT>            }<a name="line.5798"></a>
<FONT color="green">5799</FONT>            // could implement manually, but simple way is to reuse other,<a name="line.5799"></a>
<FONT color="green">5800</FONT>            // probably slower, methods.<a name="line.5800"></a>
<FONT color="green">5801</FONT>            String[] strs = split(str, separatorChar);<a name="line.5801"></a>
<FONT color="green">5802</FONT>            ArrayUtils.reverse(strs);<a name="line.5802"></a>
<FONT color="green">5803</FONT>            return join(strs, separatorChar);<a name="line.5803"></a>
<FONT color="green">5804</FONT>        }<a name="line.5804"></a>
<FONT color="green">5805</FONT>    <a name="line.5805"></a>
<FONT color="green">5806</FONT>        /**<a name="line.5806"></a>
<FONT color="green">5807</FONT>         * &lt;p&gt;Reverses a String that is delimited by a specific character.&lt;/p&gt;<a name="line.5807"></a>
<FONT color="green">5808</FONT>         *<a name="line.5808"></a>
<FONT color="green">5809</FONT>         * &lt;p&gt;The Strings between the delimiters are not reversed.<a name="line.5809"></a>
<FONT color="green">5810</FONT>         * Thus java.lang.String becomes String.lang.java (if the delimiter<a name="line.5810"></a>
<FONT color="green">5811</FONT>         * is &lt;code&gt;"."&lt;/code&gt;).&lt;/p&gt;<a name="line.5811"></a>
<FONT color="green">5812</FONT>         *<a name="line.5812"></a>
<FONT color="green">5813</FONT>         * &lt;pre&gt;<a name="line.5813"></a>
<FONT color="green">5814</FONT>         * StringUtils.reverseDelimitedString(null, *)       = null<a name="line.5814"></a>
<FONT color="green">5815</FONT>         * StringUtils.reverseDelimitedString("",*)          = ""<a name="line.5815"></a>
<FONT color="green">5816</FONT>         * StringUtils.reverseDelimitedString("a.b.c", null) = "a.b.c"<a name="line.5816"></a>
<FONT color="green">5817</FONT>         * StringUtils.reverseDelimitedString("a.b.c", ".")  = "c.b.a"<a name="line.5817"></a>
<FONT color="green">5818</FONT>         * &lt;/pre&gt;<a name="line.5818"></a>
<FONT color="green">5819</FONT>         *<a name="line.5819"></a>
<FONT color="green">5820</FONT>         * @param str  the String to reverse, may be null<a name="line.5820"></a>
<FONT color="green">5821</FONT>         * @param separatorChars  the separator characters to use, null treated as whitespace<a name="line.5821"></a>
<FONT color="green">5822</FONT>         * @return the reversed String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5822"></a>
<FONT color="green">5823</FONT>         * @deprecated Use {@link #reverseDelimited(String, char)} instead.<a name="line.5823"></a>
<FONT color="green">5824</FONT>         *      This method is broken as the join doesn't know which char to use.<a name="line.5824"></a>
<FONT color="green">5825</FONT>         *      Method will be removed in Commons Lang 3.0.<a name="line.5825"></a>
<FONT color="green">5826</FONT>         *<a name="line.5826"></a>
<FONT color="green">5827</FONT>         */<a name="line.5827"></a>
<FONT color="green">5828</FONT>        public static String reverseDelimitedString(String str, String separatorChars) {<a name="line.5828"></a>
<FONT color="green">5829</FONT>            if (str == null) {<a name="line.5829"></a>
<FONT color="green">5830</FONT>                return null;<a name="line.5830"></a>
<FONT color="green">5831</FONT>            }<a name="line.5831"></a>
<FONT color="green">5832</FONT>            // could implement manually, but simple way is to reuse other,<a name="line.5832"></a>
<FONT color="green">5833</FONT>            // probably slower, methods.<a name="line.5833"></a>
<FONT color="green">5834</FONT>            String[] strs = split(str, separatorChars);<a name="line.5834"></a>
<FONT color="green">5835</FONT>            ArrayUtils.reverse(strs);<a name="line.5835"></a>
<FONT color="green">5836</FONT>            if (separatorChars == null) {<a name="line.5836"></a>
<FONT color="green">5837</FONT>                return join(strs, ' ');<a name="line.5837"></a>
<FONT color="green">5838</FONT>            }<a name="line.5838"></a>
<FONT color="green">5839</FONT>            return join(strs, separatorChars);<a name="line.5839"></a>
<FONT color="green">5840</FONT>        }<a name="line.5840"></a>
<FONT color="green">5841</FONT>    <a name="line.5841"></a>
<FONT color="green">5842</FONT>        // Abbreviating<a name="line.5842"></a>
<FONT color="green">5843</FONT>        //-----------------------------------------------------------------------<a name="line.5843"></a>
<FONT color="green">5844</FONT>        /**<a name="line.5844"></a>
<FONT color="green">5845</FONT>         * &lt;p&gt;Abbreviates a String using ellipses. This will turn<a name="line.5845"></a>
<FONT color="green">5846</FONT>         * "Now is the time for all good men" into "Now is the time for..."&lt;/p&gt;<a name="line.5846"></a>
<FONT color="green">5847</FONT>         *<a name="line.5847"></a>
<FONT color="green">5848</FONT>         * &lt;p&gt;Specifically:<a name="line.5848"></a>
<FONT color="green">5849</FONT>         * &lt;ul&gt;<a name="line.5849"></a>
<FONT color="green">5850</FONT>         *   &lt;li&gt;If &lt;code&gt;str&lt;/code&gt; is less than &lt;code&gt;maxWidth&lt;/code&gt; characters<a name="line.5850"></a>
<FONT color="green">5851</FONT>         *       long, return it.&lt;/li&gt;<a name="line.5851"></a>
<FONT color="green">5852</FONT>         *   &lt;li&gt;Else abbreviate it to &lt;code&gt;(substring(str, 0, max-3) + "...")&lt;/code&gt;.&lt;/li&gt;<a name="line.5852"></a>
<FONT color="green">5853</FONT>         *   &lt;li&gt;If &lt;code&gt;maxWidth&lt;/code&gt; is less than &lt;code&gt;4&lt;/code&gt;, throw an<a name="line.5853"></a>
<FONT color="green">5854</FONT>         *       &lt;code&gt;IllegalArgumentException&lt;/code&gt;.&lt;/li&gt;<a name="line.5854"></a>
<FONT color="green">5855</FONT>         *   &lt;li&gt;In no case will it return a String of length greater than<a name="line.5855"></a>
<FONT color="green">5856</FONT>         *       &lt;code&gt;maxWidth&lt;/code&gt;.&lt;/li&gt;<a name="line.5856"></a>
<FONT color="green">5857</FONT>         * &lt;/ul&gt;<a name="line.5857"></a>
<FONT color="green">5858</FONT>         * &lt;/p&gt;<a name="line.5858"></a>
<FONT color="green">5859</FONT>         *<a name="line.5859"></a>
<FONT color="green">5860</FONT>         * &lt;pre&gt;<a name="line.5860"></a>
<FONT color="green">5861</FONT>         * StringUtils.abbreviate(null, *)      = null<a name="line.5861"></a>
<FONT color="green">5862</FONT>         * StringUtils.abbreviate("", 4)        = ""<a name="line.5862"></a>
<FONT color="green">5863</FONT>         * StringUtils.abbreviate("abcdefg", 6) = "abc..."<a name="line.5863"></a>
<FONT color="green">5864</FONT>         * StringUtils.abbreviate("abcdefg", 7) = "abcdefg"<a name="line.5864"></a>
<FONT color="green">5865</FONT>         * StringUtils.abbreviate("abcdefg", 8) = "abcdefg"<a name="line.5865"></a>
<FONT color="green">5866</FONT>         * StringUtils.abbreviate("abcdefg", 4) = "a..."<a name="line.5866"></a>
<FONT color="green">5867</FONT>         * StringUtils.abbreviate("abcdefg", 3) = IllegalArgumentException<a name="line.5867"></a>
<FONT color="green">5868</FONT>         * &lt;/pre&gt;<a name="line.5868"></a>
<FONT color="green">5869</FONT>         *<a name="line.5869"></a>
<FONT color="green">5870</FONT>         * @param str  the String to check, may be null<a name="line.5870"></a>
<FONT color="green">5871</FONT>         * @param maxWidth  maximum length of result String, must be at least 4<a name="line.5871"></a>
<FONT color="green">5872</FONT>         * @return abbreviated String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5872"></a>
<FONT color="green">5873</FONT>         * @throws IllegalArgumentException if the width is too small<a name="line.5873"></a>
<FONT color="green">5874</FONT>         * @since 2.0<a name="line.5874"></a>
<FONT color="green">5875</FONT>         */<a name="line.5875"></a>
<FONT color="green">5876</FONT>        public static String abbreviate(String str, int maxWidth) {<a name="line.5876"></a>
<FONT color="green">5877</FONT>            return abbreviate(str, 0, maxWidth);<a name="line.5877"></a>
<FONT color="green">5878</FONT>        }<a name="line.5878"></a>
<FONT color="green">5879</FONT>    <a name="line.5879"></a>
<FONT color="green">5880</FONT>        /**<a name="line.5880"></a>
<FONT color="green">5881</FONT>         * &lt;p&gt;Abbreviates a String using ellipses. This will turn<a name="line.5881"></a>
<FONT color="green">5882</FONT>         * "Now is the time for all good men" into "...is the time for..."&lt;/p&gt;<a name="line.5882"></a>
<FONT color="green">5883</FONT>         *<a name="line.5883"></a>
<FONT color="green">5884</FONT>         * &lt;p&gt;Works like &lt;code&gt;abbreviate(String, int)&lt;/code&gt;, but allows you to specify<a name="line.5884"></a>
<FONT color="green">5885</FONT>         * a "left edge" offset.  Note that this left edge is not necessarily going to<a name="line.5885"></a>
<FONT color="green">5886</FONT>         * be the leftmost character in the result, or the first character following the<a name="line.5886"></a>
<FONT color="green">5887</FONT>         * ellipses, but it will appear somewhere in the result.<a name="line.5887"></a>
<FONT color="green">5888</FONT>         *<a name="line.5888"></a>
<FONT color="green">5889</FONT>         * &lt;p&gt;In no case will it return a String of length greater than<a name="line.5889"></a>
<FONT color="green">5890</FONT>         * &lt;code&gt;maxWidth&lt;/code&gt;.&lt;/p&gt;<a name="line.5890"></a>
<FONT color="green">5891</FONT>         *<a name="line.5891"></a>
<FONT color="green">5892</FONT>         * &lt;pre&gt;<a name="line.5892"></a>
<FONT color="green">5893</FONT>         * StringUtils.abbreviate(null, *, *)                = null<a name="line.5893"></a>
<FONT color="green">5894</FONT>         * StringUtils.abbreviate("", 0, 4)                  = ""<a name="line.5894"></a>
<FONT color="green">5895</FONT>         * StringUtils.abbreviate("abcdefghijklmno", -1, 10) = "abcdefg..."<a name="line.5895"></a>
<FONT color="green">5896</FONT>         * StringUtils.abbreviate("abcdefghijklmno", 0, 10)  = "abcdefg..."<a name="line.5896"></a>
<FONT color="green">5897</FONT>         * StringUtils.abbreviate("abcdefghijklmno", 1, 10)  = "abcdefg..."<a name="line.5897"></a>
<FONT color="green">5898</FONT>         * StringUtils.abbreviate("abcdefghijklmno", 4, 10)  = "abcdefg..."<a name="line.5898"></a>
<FONT color="green">5899</FONT>         * StringUtils.abbreviate("abcdefghijklmno", 5, 10)  = "...fghi..."<a name="line.5899"></a>
<FONT color="green">5900</FONT>         * StringUtils.abbreviate("abcdefghijklmno", 6, 10)  = "...ghij..."<a name="line.5900"></a>
<FONT color="green">5901</FONT>         * StringUtils.abbreviate("abcdefghijklmno", 8, 10)  = "...ijklmno"<a name="line.5901"></a>
<FONT color="green">5902</FONT>         * StringUtils.abbreviate("abcdefghijklmno", 10, 10) = "...ijklmno"<a name="line.5902"></a>
<FONT color="green">5903</FONT>         * StringUtils.abbreviate("abcdefghijklmno", 12, 10) = "...ijklmno"<a name="line.5903"></a>
<FONT color="green">5904</FONT>         * StringUtils.abbreviate("abcdefghij", 0, 3)        = IllegalArgumentException<a name="line.5904"></a>
<FONT color="green">5905</FONT>         * StringUtils.abbreviate("abcdefghij", 5, 6)        = IllegalArgumentException<a name="line.5905"></a>
<FONT color="green">5906</FONT>         * &lt;/pre&gt;<a name="line.5906"></a>
<FONT color="green">5907</FONT>         *<a name="line.5907"></a>
<FONT color="green">5908</FONT>         * @param str  the String to check, may be null<a name="line.5908"></a>
<FONT color="green">5909</FONT>         * @param offset  left edge of source String<a name="line.5909"></a>
<FONT color="green">5910</FONT>         * @param maxWidth  maximum length of result String, must be at least 4<a name="line.5910"></a>
<FONT color="green">5911</FONT>         * @return abbreviated String, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.5911"></a>
<FONT color="green">5912</FONT>         * @throws IllegalArgumentException if the width is too small<a name="line.5912"></a>
<FONT color="green">5913</FONT>         * @since 2.0<a name="line.5913"></a>
<FONT color="green">5914</FONT>         */<a name="line.5914"></a>
<FONT color="green">5915</FONT>        public static String abbreviate(String str, int offset, int maxWidth) {<a name="line.5915"></a>
<FONT color="green">5916</FONT>            if (str == null) {<a name="line.5916"></a>
<FONT color="green">5917</FONT>                return null;<a name="line.5917"></a>
<FONT color="green">5918</FONT>            }<a name="line.5918"></a>
<FONT color="green">5919</FONT>            if (maxWidth &lt; 4) {<a name="line.5919"></a>
<FONT color="green">5920</FONT>                throw new IllegalArgumentException("Minimum abbreviation width is 4");<a name="line.5920"></a>
<FONT color="green">5921</FONT>            }<a name="line.5921"></a>
<FONT color="green">5922</FONT>            if (str.length() &lt;= maxWidth) {<a name="line.5922"></a>
<FONT color="green">5923</FONT>                return str;<a name="line.5923"></a>
<FONT color="green">5924</FONT>            }<a name="line.5924"></a>
<FONT color="green">5925</FONT>            if (offset &gt; str.length()) {<a name="line.5925"></a>
<FONT color="green">5926</FONT>                offset = str.length();<a name="line.5926"></a>
<FONT color="green">5927</FONT>            }<a name="line.5927"></a>
<FONT color="green">5928</FONT>            if ((str.length() - offset) &lt; (maxWidth - 3)) {<a name="line.5928"></a>
<FONT color="green">5929</FONT>                offset = str.length() - (maxWidth - 3);<a name="line.5929"></a>
<FONT color="green">5930</FONT>            }<a name="line.5930"></a>
<FONT color="green">5931</FONT>            if (offset &lt;= 4) {<a name="line.5931"></a>
<FONT color="green">5932</FONT>                return str.substring(0, maxWidth - 3) + "...";<a name="line.5932"></a>
<FONT color="green">5933</FONT>            }<a name="line.5933"></a>
<FONT color="green">5934</FONT>            if (maxWidth &lt; 7) {<a name="line.5934"></a>
<FONT color="green">5935</FONT>                throw new IllegalArgumentException("Minimum abbreviation width with offset is 7");<a name="line.5935"></a>
<FONT color="green">5936</FONT>            }<a name="line.5936"></a>
<FONT color="green">5937</FONT>            if ((offset + (maxWidth - 3)) &lt; str.length()) {<a name="line.5937"></a>
<FONT color="green">5938</FONT>                return "..." + abbreviate(str.substring(offset), maxWidth - 3);<a name="line.5938"></a>
<FONT color="green">5939</FONT>            }<a name="line.5939"></a>
<FONT color="green">5940</FONT>            return "..." + str.substring(str.length() - (maxWidth - 3));<a name="line.5940"></a>
<FONT color="green">5941</FONT>        }<a name="line.5941"></a>
<FONT color="green">5942</FONT>        <a name="line.5942"></a>
<FONT color="green">5943</FONT>        /**<a name="line.5943"></a>
<FONT color="green">5944</FONT>         * &lt;p&gt;Abbreviates a String to the length passed, replacing the middle characters with the supplied<a name="line.5944"></a>
<FONT color="green">5945</FONT>         * replacement String.&lt;/p&gt;<a name="line.5945"></a>
<FONT color="green">5946</FONT>         *<a name="line.5946"></a>
<FONT color="green">5947</FONT>         * &lt;p&gt;This abbreviation only occurs if the following criteria is met:<a name="line.5947"></a>
<FONT color="green">5948</FONT>         * &lt;ul&gt;<a name="line.5948"></a>
<FONT color="green">5949</FONT>         * &lt;li&gt;Neither the String for abbreviation nor the replacement String are null or empty &lt;/li&gt;<a name="line.5949"></a>
<FONT color="green">5950</FONT>         * &lt;li&gt;The length to truncate to is less than the length of the supplied String&lt;/li&gt;<a name="line.5950"></a>
<FONT color="green">5951</FONT>         * &lt;li&gt;The length to truncate to is greater than 0&lt;/li&gt;<a name="line.5951"></a>
<FONT color="green">5952</FONT>         * &lt;li&gt;The abbreviated String will have enough room for the length supplied replacement String<a name="line.5952"></a>
<FONT color="green">5953</FONT>         * and the first and last characters of the supplied String for abbreviation&lt;/li&gt;<a name="line.5953"></a>
<FONT color="green">5954</FONT>         * &lt;/ul&gt;<a name="line.5954"></a>
<FONT color="green">5955</FONT>         * Otherwise, the returned String will be the same as the supplied String for abbreviation.<a name="line.5955"></a>
<FONT color="green">5956</FONT>         * &lt;/p&gt;<a name="line.5956"></a>
<FONT color="green">5957</FONT>         *<a name="line.5957"></a>
<FONT color="green">5958</FONT>         * &lt;pre&gt;<a name="line.5958"></a>
<FONT color="green">5959</FONT>         * StringUtils.abbreviateMiddle(null, null, 0)      = null<a name="line.5959"></a>
<FONT color="green">5960</FONT>         * StringUtils.abbreviateMiddle("abc", null, 0)      = "abc"<a name="line.5960"></a>
<FONT color="green">5961</FONT>         * StringUtils.abbreviateMiddle("abc", ".", 0)      = "abc"<a name="line.5961"></a>
<FONT color="green">5962</FONT>         * StringUtils.abbreviateMiddle("abc", ".", 3)      = "abc"<a name="line.5962"></a>
<FONT color="green">5963</FONT>         * StringUtils.abbreviateMiddle("abcdef", ".", 4)     = "ab.f"<a name="line.5963"></a>
<FONT color="green">5964</FONT>         * &lt;/pre&gt;<a name="line.5964"></a>
<FONT color="green">5965</FONT>         *<a name="line.5965"></a>
<FONT color="green">5966</FONT>         * @param str  the String to abbreviate, may be null<a name="line.5966"></a>
<FONT color="green">5967</FONT>         * @param middle the String to replace the middle characters with, may be null<a name="line.5967"></a>
<FONT color="green">5968</FONT>         * @param length the length to abbreviate &lt;code&gt;str&lt;/code&gt; to.<a name="line.5968"></a>
<FONT color="green">5969</FONT>         * @return the abbreviated String if the above criteria is met, or the original String supplied for abbreviation.<a name="line.5969"></a>
<FONT color="green">5970</FONT>         * @since 2.5<a name="line.5970"></a>
<FONT color="green">5971</FONT>         */<a name="line.5971"></a>
<FONT color="green">5972</FONT>        public static String abbreviateMiddle(String str, String middle, int length) {<a name="line.5972"></a>
<FONT color="green">5973</FONT>            if (isEmpty(str) || isEmpty(middle)) {<a name="line.5973"></a>
<FONT color="green">5974</FONT>                return str;<a name="line.5974"></a>
<FONT color="green">5975</FONT>            }<a name="line.5975"></a>
<FONT color="green">5976</FONT>          <a name="line.5976"></a>
<FONT color="green">5977</FONT>            if (length &gt;= str.length() || length &lt; (middle.length()+2)) {<a name="line.5977"></a>
<FONT color="green">5978</FONT>                return str;<a name="line.5978"></a>
<FONT color="green">5979</FONT>            }<a name="line.5979"></a>
<FONT color="green">5980</FONT>    <a name="line.5980"></a>
<FONT color="green">5981</FONT>            int targetSting = length-middle.length();<a name="line.5981"></a>
<FONT color="green">5982</FONT>            int startOffset = targetSting/2+targetSting%2;<a name="line.5982"></a>
<FONT color="green">5983</FONT>            int endOffset = str.length()-targetSting/2;<a name="line.5983"></a>
<FONT color="green">5984</FONT>            <a name="line.5984"></a>
<FONT color="green">5985</FONT>            StrBuilder builder = new StrBuilder(length);<a name="line.5985"></a>
<FONT color="green">5986</FONT>            builder.append(str.substring(0,startOffset));<a name="line.5986"></a>
<FONT color="green">5987</FONT>            builder.append(middle);<a name="line.5987"></a>
<FONT color="green">5988</FONT>            builder.append(str.substring(endOffset));<a name="line.5988"></a>
<FONT color="green">5989</FONT>            <a name="line.5989"></a>
<FONT color="green">5990</FONT>            return builder.toString();<a name="line.5990"></a>
<FONT color="green">5991</FONT>        }<a name="line.5991"></a>
<FONT color="green">5992</FONT>    <a name="line.5992"></a>
<FONT color="green">5993</FONT>        // Difference<a name="line.5993"></a>
<FONT color="green">5994</FONT>        //-----------------------------------------------------------------------<a name="line.5994"></a>
<FONT color="green">5995</FONT>        /**<a name="line.5995"></a>
<FONT color="green">5996</FONT>         * &lt;p&gt;Compares two Strings, and returns the portion where they differ.<a name="line.5996"></a>
<FONT color="green">5997</FONT>         * (More precisely, return the remainder of the second String,<a name="line.5997"></a>
<FONT color="green">5998</FONT>         * starting from where it's different from the first.)&lt;/p&gt;<a name="line.5998"></a>
<FONT color="green">5999</FONT>         *<a name="line.5999"></a>
<FONT color="green">6000</FONT>         * &lt;p&gt;For example,<a name="line.6000"></a>
<FONT color="green">6001</FONT>         * &lt;code&gt;difference("i am a machine", "i am a robot") -&gt; "robot"&lt;/code&gt;.&lt;/p&gt;<a name="line.6001"></a>
<FONT color="green">6002</FONT>         *<a name="line.6002"></a>
<FONT color="green">6003</FONT>         * &lt;pre&gt;<a name="line.6003"></a>
<FONT color="green">6004</FONT>         * StringUtils.difference(null, null) = null<a name="line.6004"></a>
<FONT color="green">6005</FONT>         * StringUtils.difference("", "") = ""<a name="line.6005"></a>
<FONT color="green">6006</FONT>         * StringUtils.difference("", "abc") = "abc"<a name="line.6006"></a>
<FONT color="green">6007</FONT>         * StringUtils.difference("abc", "") = ""<a name="line.6007"></a>
<FONT color="green">6008</FONT>         * StringUtils.difference("abc", "abc") = ""<a name="line.6008"></a>
<FONT color="green">6009</FONT>         * StringUtils.difference("ab", "abxyz") = "xyz"<a name="line.6009"></a>
<FONT color="green">6010</FONT>         * StringUtils.difference("abcde", "abxyz") = "xyz"<a name="line.6010"></a>
<FONT color="green">6011</FONT>         * StringUtils.difference("abcde", "xyz") = "xyz"<a name="line.6011"></a>
<FONT color="green">6012</FONT>         * &lt;/pre&gt;<a name="line.6012"></a>
<FONT color="green">6013</FONT>         *<a name="line.6013"></a>
<FONT color="green">6014</FONT>         * @param str1  the first String, may be null<a name="line.6014"></a>
<FONT color="green">6015</FONT>         * @param str2  the second String, may be null<a name="line.6015"></a>
<FONT color="green">6016</FONT>         * @return the portion of str2 where it differs from str1; returns the<a name="line.6016"></a>
<FONT color="green">6017</FONT>         * empty String if they are equal<a name="line.6017"></a>
<FONT color="green">6018</FONT>         * @since 2.0<a name="line.6018"></a>
<FONT color="green">6019</FONT>         */<a name="line.6019"></a>
<FONT color="green">6020</FONT>        public static String difference(String str1, String str2) {<a name="line.6020"></a>
<FONT color="green">6021</FONT>            if (str1 == null) {<a name="line.6021"></a>
<FONT color="green">6022</FONT>                return str2;<a name="line.6022"></a>
<FONT color="green">6023</FONT>            }<a name="line.6023"></a>
<FONT color="green">6024</FONT>            if (str2 == null) {<a name="line.6024"></a>
<FONT color="green">6025</FONT>                return str1;<a name="line.6025"></a>
<FONT color="green">6026</FONT>            }<a name="line.6026"></a>
<FONT color="green">6027</FONT>            int at = indexOfDifference(str1, str2);<a name="line.6027"></a>
<FONT color="green">6028</FONT>            if (at == INDEX_NOT_FOUND) {<a name="line.6028"></a>
<FONT color="green">6029</FONT>                return EMPTY;<a name="line.6029"></a>
<FONT color="green">6030</FONT>            }<a name="line.6030"></a>
<FONT color="green">6031</FONT>            return str2.substring(at);<a name="line.6031"></a>
<FONT color="green">6032</FONT>        }<a name="line.6032"></a>
<FONT color="green">6033</FONT>    <a name="line.6033"></a>
<FONT color="green">6034</FONT>        /**<a name="line.6034"></a>
<FONT color="green">6035</FONT>         * &lt;p&gt;Compares two Strings, and returns the index at which the<a name="line.6035"></a>
<FONT color="green">6036</FONT>         * Strings begin to differ.&lt;/p&gt;<a name="line.6036"></a>
<FONT color="green">6037</FONT>         *<a name="line.6037"></a>
<FONT color="green">6038</FONT>         * &lt;p&gt;For example,<a name="line.6038"></a>
<FONT color="green">6039</FONT>         * &lt;code&gt;indexOfDifference("i am a machine", "i am a robot") -&gt; 7&lt;/code&gt;&lt;/p&gt;<a name="line.6039"></a>
<FONT color="green">6040</FONT>         *<a name="line.6040"></a>
<FONT color="green">6041</FONT>         * &lt;pre&gt;<a name="line.6041"></a>
<FONT color="green">6042</FONT>         * StringUtils.indexOfDifference(null, null) = -1<a name="line.6042"></a>
<FONT color="green">6043</FONT>         * StringUtils.indexOfDifference("", "") = -1<a name="line.6043"></a>
<FONT color="green">6044</FONT>         * StringUtils.indexOfDifference("", "abc") = 0<a name="line.6044"></a>
<FONT color="green">6045</FONT>         * StringUtils.indexOfDifference("abc", "") = 0<a name="line.6045"></a>
<FONT color="green">6046</FONT>         * StringUtils.indexOfDifference("abc", "abc") = -1<a name="line.6046"></a>
<FONT color="green">6047</FONT>         * StringUtils.indexOfDifference("ab", "abxyz") = 2<a name="line.6047"></a>
<FONT color="green">6048</FONT>         * StringUtils.indexOfDifference("abcde", "abxyz") = 2<a name="line.6048"></a>
<FONT color="green">6049</FONT>         * StringUtils.indexOfDifference("abcde", "xyz") = 0<a name="line.6049"></a>
<FONT color="green">6050</FONT>         * &lt;/pre&gt;<a name="line.6050"></a>
<FONT color="green">6051</FONT>         *<a name="line.6051"></a>
<FONT color="green">6052</FONT>         * @param str1  the first String, may be null<a name="line.6052"></a>
<FONT color="green">6053</FONT>         * @param str2  the second String, may be null<a name="line.6053"></a>
<FONT color="green">6054</FONT>         * @return the index where str2 and str1 begin to differ; -1 if they are equal<a name="line.6054"></a>
<FONT color="green">6055</FONT>         * @since 2.0<a name="line.6055"></a>
<FONT color="green">6056</FONT>         */<a name="line.6056"></a>
<FONT color="green">6057</FONT>        public static int indexOfDifference(String str1, String str2) {<a name="line.6057"></a>
<FONT color="green">6058</FONT>            if (str1 == str2) {<a name="line.6058"></a>
<FONT color="green">6059</FONT>                return INDEX_NOT_FOUND;<a name="line.6059"></a>
<FONT color="green">6060</FONT>            }<a name="line.6060"></a>
<FONT color="green">6061</FONT>            if (str1 == null || str2 == null) {<a name="line.6061"></a>
<FONT color="green">6062</FONT>                return 0;<a name="line.6062"></a>
<FONT color="green">6063</FONT>            }<a name="line.6063"></a>
<FONT color="green">6064</FONT>            int i;<a name="line.6064"></a>
<FONT color="green">6065</FONT>            for (i = 0; i &lt; str1.length() &amp;&amp; i &lt; str2.length(); ++i) {<a name="line.6065"></a>
<FONT color="green">6066</FONT>                if (str1.charAt(i) != str2.charAt(i)) {<a name="line.6066"></a>
<FONT color="green">6067</FONT>                    break;<a name="line.6067"></a>
<FONT color="green">6068</FONT>                }<a name="line.6068"></a>
<FONT color="green">6069</FONT>            }<a name="line.6069"></a>
<FONT color="green">6070</FONT>            if (i &lt; str2.length() || i &lt; str1.length()) {<a name="line.6070"></a>
<FONT color="green">6071</FONT>                return i;<a name="line.6071"></a>
<FONT color="green">6072</FONT>            }<a name="line.6072"></a>
<FONT color="green">6073</FONT>            return INDEX_NOT_FOUND;<a name="line.6073"></a>
<FONT color="green">6074</FONT>        }<a name="line.6074"></a>
<FONT color="green">6075</FONT>    <a name="line.6075"></a>
<FONT color="green">6076</FONT>        /**<a name="line.6076"></a>
<FONT color="green">6077</FONT>         * &lt;p&gt;Compares all Strings in an array and returns the index at which the<a name="line.6077"></a>
<FONT color="green">6078</FONT>         * Strings begin to differ.&lt;/p&gt;<a name="line.6078"></a>
<FONT color="green">6079</FONT>         *<a name="line.6079"></a>
<FONT color="green">6080</FONT>         * &lt;p&gt;For example,<a name="line.6080"></a>
<FONT color="green">6081</FONT>         * &lt;code&gt;indexOfDifference(new String[] {"i am a machine", "i am a robot"}) -&gt; 7&lt;/code&gt;&lt;/p&gt;<a name="line.6081"></a>
<FONT color="green">6082</FONT>         *<a name="line.6082"></a>
<FONT color="green">6083</FONT>         * &lt;pre&gt;<a name="line.6083"></a>
<FONT color="green">6084</FONT>         * StringUtils.indexOfDifference(null) = -1<a name="line.6084"></a>
<FONT color="green">6085</FONT>         * StringUtils.indexOfDifference(new String[] {}) = -1<a name="line.6085"></a>
<FONT color="green">6086</FONT>         * StringUtils.indexOfDifference(new String[] {"abc"}) = -1<a name="line.6086"></a>
<FONT color="green">6087</FONT>         * StringUtils.indexOfDifference(new String[] {null, null}) = -1<a name="line.6087"></a>
<FONT color="green">6088</FONT>         * StringUtils.indexOfDifference(new String[] {"", ""}) = -1<a name="line.6088"></a>
<FONT color="green">6089</FONT>         * StringUtils.indexOfDifference(new String[] {"", null}) = 0<a name="line.6089"></a>
<FONT color="green">6090</FONT>         * StringUtils.indexOfDifference(new String[] {"abc", null, null}) = 0<a name="line.6090"></a>
<FONT color="green">6091</FONT>         * StringUtils.indexOfDifference(new String[] {null, null, "abc"}) = 0<a name="line.6091"></a>
<FONT color="green">6092</FONT>         * StringUtils.indexOfDifference(new String[] {"", "abc"}) = 0<a name="line.6092"></a>
<FONT color="green">6093</FONT>         * StringUtils.indexOfDifference(new String[] {"abc", ""}) = 0<a name="line.6093"></a>
<FONT color="green">6094</FONT>         * StringUtils.indexOfDifference(new String[] {"abc", "abc"}) = -1<a name="line.6094"></a>
<FONT color="green">6095</FONT>         * StringUtils.indexOfDifference(new String[] {"abc", "a"}) = 1<a name="line.6095"></a>
<FONT color="green">6096</FONT>         * StringUtils.indexOfDifference(new String[] {"ab", "abxyz"}) = 2<a name="line.6096"></a>
<FONT color="green">6097</FONT>         * StringUtils.indexOfDifference(new String[] {"abcde", "abxyz"}) = 2<a name="line.6097"></a>
<FONT color="green">6098</FONT>         * StringUtils.indexOfDifference(new String[] {"abcde", "xyz"}) = 0<a name="line.6098"></a>
<FONT color="green">6099</FONT>         * StringUtils.indexOfDifference(new String[] {"xyz", "abcde"}) = 0<a name="line.6099"></a>
<FONT color="green">6100</FONT>         * StringUtils.indexOfDifference(new String[] {"i am a machine", "i am a robot"}) = 7<a name="line.6100"></a>
<FONT color="green">6101</FONT>         * &lt;/pre&gt;<a name="line.6101"></a>
<FONT color="green">6102</FONT>         *<a name="line.6102"></a>
<FONT color="green">6103</FONT>         * @param strs  array of strings, entries may be null<a name="line.6103"></a>
<FONT color="green">6104</FONT>         * @return the index where the strings begin to differ; -1 if they are all equal<a name="line.6104"></a>
<FONT color="green">6105</FONT>         * @since 2.4<a name="line.6105"></a>
<FONT color="green">6106</FONT>         */<a name="line.6106"></a>
<FONT color="green">6107</FONT>        public static int indexOfDifference(String[] strs) {<a name="line.6107"></a>
<FONT color="green">6108</FONT>            if (strs == null || strs.length &lt;= 1) {<a name="line.6108"></a>
<FONT color="green">6109</FONT>                return INDEX_NOT_FOUND;<a name="line.6109"></a>
<FONT color="green">6110</FONT>            }<a name="line.6110"></a>
<FONT color="green">6111</FONT>            boolean anyStringNull = false;<a name="line.6111"></a>
<FONT color="green">6112</FONT>            boolean allStringsNull = true;<a name="line.6112"></a>
<FONT color="green">6113</FONT>            int arrayLen = strs.length;<a name="line.6113"></a>
<FONT color="green">6114</FONT>            int shortestStrLen = Integer.MAX_VALUE;<a name="line.6114"></a>
<FONT color="green">6115</FONT>            int longestStrLen = 0;<a name="line.6115"></a>
<FONT color="green">6116</FONT>    <a name="line.6116"></a>
<FONT color="green">6117</FONT>            // find the min and max string lengths; this avoids checking to make<a name="line.6117"></a>
<FONT color="green">6118</FONT>            // sure we are not exceeding the length of the string each time through<a name="line.6118"></a>
<FONT color="green">6119</FONT>            // the bottom loop.<a name="line.6119"></a>
<FONT color="green">6120</FONT>            for (int i = 0; i &lt; arrayLen; i++) {<a name="line.6120"></a>
<FONT color="green">6121</FONT>                if (strs[i] == null) {<a name="line.6121"></a>
<FONT color="green">6122</FONT>                    anyStringNull = true;<a name="line.6122"></a>
<FONT color="green">6123</FONT>                    shortestStrLen = 0;<a name="line.6123"></a>
<FONT color="green">6124</FONT>                } else {<a name="line.6124"></a>
<FONT color="green">6125</FONT>                    allStringsNull = false;<a name="line.6125"></a>
<FONT color="green">6126</FONT>                    shortestStrLen = Math.min(strs[i].length(), shortestStrLen);<a name="line.6126"></a>
<FONT color="green">6127</FONT>                    longestStrLen = Math.max(strs[i].length(), longestStrLen);<a name="line.6127"></a>
<FONT color="green">6128</FONT>                }<a name="line.6128"></a>
<FONT color="green">6129</FONT>            }<a name="line.6129"></a>
<FONT color="green">6130</FONT>    <a name="line.6130"></a>
<FONT color="green">6131</FONT>            // handle lists containing all nulls or all empty strings<a name="line.6131"></a>
<FONT color="green">6132</FONT>            if (allStringsNull || (longestStrLen == 0 &amp;&amp; !anyStringNull)) {<a name="line.6132"></a>
<FONT color="green">6133</FONT>                return INDEX_NOT_FOUND;<a name="line.6133"></a>
<FONT color="green">6134</FONT>            }<a name="line.6134"></a>
<FONT color="green">6135</FONT>    <a name="line.6135"></a>
<FONT color="green">6136</FONT>            // handle lists containing some nulls or some empty strings<a name="line.6136"></a>
<FONT color="green">6137</FONT>            if (shortestStrLen == 0) {<a name="line.6137"></a>
<FONT color="green">6138</FONT>                return 0;<a name="line.6138"></a>
<FONT color="green">6139</FONT>            }<a name="line.6139"></a>
<FONT color="green">6140</FONT>    <a name="line.6140"></a>
<FONT color="green">6141</FONT>            // find the position with the first difference across all strings<a name="line.6141"></a>
<FONT color="green">6142</FONT>            int firstDiff = -1;<a name="line.6142"></a>
<FONT color="green">6143</FONT>            for (int stringPos = 0; stringPos &lt; shortestStrLen; stringPos++) {<a name="line.6143"></a>
<FONT color="green">6144</FONT>                char comparisonChar = strs[0].charAt(stringPos);<a name="line.6144"></a>
<FONT color="green">6145</FONT>                for (int arrayPos = 1; arrayPos &lt; arrayLen; arrayPos++) {<a name="line.6145"></a>
<FONT color="green">6146</FONT>                    if (strs[arrayPos].charAt(stringPos) != comparisonChar) {<a name="line.6146"></a>
<FONT color="green">6147</FONT>                        firstDiff = stringPos;<a name="line.6147"></a>
<FONT color="green">6148</FONT>                        break;<a name="line.6148"></a>
<FONT color="green">6149</FONT>                    }<a name="line.6149"></a>
<FONT color="green">6150</FONT>                }<a name="line.6150"></a>
<FONT color="green">6151</FONT>                if (firstDiff != -1) {<a name="line.6151"></a>
<FONT color="green">6152</FONT>                    break;<a name="line.6152"></a>
<FONT color="green">6153</FONT>                }<a name="line.6153"></a>
<FONT color="green">6154</FONT>            }<a name="line.6154"></a>
<FONT color="green">6155</FONT>    <a name="line.6155"></a>
<FONT color="green">6156</FONT>            if (firstDiff == -1 &amp;&amp; shortestStrLen != longestStrLen) {<a name="line.6156"></a>
<FONT color="green">6157</FONT>                // we compared all of the characters up to the length of the<a name="line.6157"></a>
<FONT color="green">6158</FONT>                // shortest string and didn't find a match, but the string lengths<a name="line.6158"></a>
<FONT color="green">6159</FONT>                // vary, so return the length of the shortest string.<a name="line.6159"></a>
<FONT color="green">6160</FONT>                return shortestStrLen;<a name="line.6160"></a>
<FONT color="green">6161</FONT>            }<a name="line.6161"></a>
<FONT color="green">6162</FONT>            return firstDiff;<a name="line.6162"></a>
<FONT color="green">6163</FONT>        }<a name="line.6163"></a>
<FONT color="green">6164</FONT>        <a name="line.6164"></a>
<FONT color="green">6165</FONT>        /**<a name="line.6165"></a>
<FONT color="green">6166</FONT>         * &lt;p&gt;Compares all Strings in an array and returns the initial sequence of <a name="line.6166"></a>
<FONT color="green">6167</FONT>         * characters that is common to all of them.&lt;/p&gt;<a name="line.6167"></a>
<FONT color="green">6168</FONT>         *<a name="line.6168"></a>
<FONT color="green">6169</FONT>         * &lt;p&gt;For example,<a name="line.6169"></a>
<FONT color="green">6170</FONT>         * &lt;code&gt;getCommonPrefix(new String[] {"i am a machine", "i am a robot"}) -&gt; "i am a "&lt;/code&gt;&lt;/p&gt;<a name="line.6170"></a>
<FONT color="green">6171</FONT>         *<a name="line.6171"></a>
<FONT color="green">6172</FONT>         * &lt;pre&gt;<a name="line.6172"></a>
<FONT color="green">6173</FONT>         * StringUtils.getCommonPrefix(null) = ""<a name="line.6173"></a>
<FONT color="green">6174</FONT>         * StringUtils.getCommonPrefix(new String[] {}) = ""<a name="line.6174"></a>
<FONT color="green">6175</FONT>         * StringUtils.getCommonPrefix(new String[] {"abc"}) = "abc"<a name="line.6175"></a>
<FONT color="green">6176</FONT>         * StringUtils.getCommonPrefix(new String[] {null, null}) = ""<a name="line.6176"></a>
<FONT color="green">6177</FONT>         * StringUtils.getCommonPrefix(new String[] {"", ""}) = ""<a name="line.6177"></a>
<FONT color="green">6178</FONT>         * StringUtils.getCommonPrefix(new String[] {"", null}) = ""<a name="line.6178"></a>
<FONT color="green">6179</FONT>         * StringUtils.getCommonPrefix(new String[] {"abc", null, null}) = ""<a name="line.6179"></a>
<FONT color="green">6180</FONT>         * StringUtils.getCommonPrefix(new String[] {null, null, "abc"}) = ""<a name="line.6180"></a>
<FONT color="green">6181</FONT>         * StringUtils.getCommonPrefix(new String[] {"", "abc"}) = ""<a name="line.6181"></a>
<FONT color="green">6182</FONT>         * StringUtils.getCommonPrefix(new String[] {"abc", ""}) = ""<a name="line.6182"></a>
<FONT color="green">6183</FONT>         * StringUtils.getCommonPrefix(new String[] {"abc", "abc"}) = "abc"<a name="line.6183"></a>
<FONT color="green">6184</FONT>         * StringUtils.getCommonPrefix(new String[] {"abc", "a"}) = "a"<a name="line.6184"></a>
<FONT color="green">6185</FONT>         * StringUtils.getCommonPrefix(new String[] {"ab", "abxyz"}) = "ab"<a name="line.6185"></a>
<FONT color="green">6186</FONT>         * StringUtils.getCommonPrefix(new String[] {"abcde", "abxyz"}) = "ab"<a name="line.6186"></a>
<FONT color="green">6187</FONT>         * StringUtils.getCommonPrefix(new String[] {"abcde", "xyz"}) = ""<a name="line.6187"></a>
<FONT color="green">6188</FONT>         * StringUtils.getCommonPrefix(new String[] {"xyz", "abcde"}) = ""<a name="line.6188"></a>
<FONT color="green">6189</FONT>         * StringUtils.getCommonPrefix(new String[] {"i am a machine", "i am a robot"}) = "i am a "<a name="line.6189"></a>
<FONT color="green">6190</FONT>         * &lt;/pre&gt;<a name="line.6190"></a>
<FONT color="green">6191</FONT>         *<a name="line.6191"></a>
<FONT color="green">6192</FONT>         * @param strs  array of String objects, entries may be null<a name="line.6192"></a>
<FONT color="green">6193</FONT>         * @return the initial sequence of characters that are common to all Strings<a name="line.6193"></a>
<FONT color="green">6194</FONT>         * in the array; empty String if the array is null, the elements are all null <a name="line.6194"></a>
<FONT color="green">6195</FONT>         * or if there is no common prefix. <a name="line.6195"></a>
<FONT color="green">6196</FONT>         * @since 2.4<a name="line.6196"></a>
<FONT color="green">6197</FONT>         */<a name="line.6197"></a>
<FONT color="green">6198</FONT>        public static String getCommonPrefix(String[] strs) {<a name="line.6198"></a>
<FONT color="green">6199</FONT>            if (strs == null || strs.length == 0) {<a name="line.6199"></a>
<FONT color="green">6200</FONT>                return EMPTY;<a name="line.6200"></a>
<FONT color="green">6201</FONT>            }<a name="line.6201"></a>
<FONT color="green">6202</FONT>            int smallestIndexOfDiff = indexOfDifference(strs);<a name="line.6202"></a>
<FONT color="green">6203</FONT>            if (smallestIndexOfDiff == INDEX_NOT_FOUND) {<a name="line.6203"></a>
<FONT color="green">6204</FONT>                // all strings were identical<a name="line.6204"></a>
<FONT color="green">6205</FONT>                if (strs[0] == null) {<a name="line.6205"></a>
<FONT color="green">6206</FONT>                    return EMPTY;<a name="line.6206"></a>
<FONT color="green">6207</FONT>                }<a name="line.6207"></a>
<FONT color="green">6208</FONT>                return strs[0];<a name="line.6208"></a>
<FONT color="green">6209</FONT>            } else if (smallestIndexOfDiff == 0) {<a name="line.6209"></a>
<FONT color="green">6210</FONT>                // there were no common initial characters<a name="line.6210"></a>
<FONT color="green">6211</FONT>                return EMPTY;<a name="line.6211"></a>
<FONT color="green">6212</FONT>            } else {<a name="line.6212"></a>
<FONT color="green">6213</FONT>                // we found a common initial character sequence<a name="line.6213"></a>
<FONT color="green">6214</FONT>                return strs[0].substring(0, smallestIndexOfDiff);<a name="line.6214"></a>
<FONT color="green">6215</FONT>            }<a name="line.6215"></a>
<FONT color="green">6216</FONT>        }  <a name="line.6216"></a>
<FONT color="green">6217</FONT>        <a name="line.6217"></a>
<FONT color="green">6218</FONT>        // Misc<a name="line.6218"></a>
<FONT color="green">6219</FONT>        //-----------------------------------------------------------------------<a name="line.6219"></a>
<FONT color="green">6220</FONT>        /**<a name="line.6220"></a>
<FONT color="green">6221</FONT>         * &lt;p&gt;Find the Levenshtein distance between two Strings.&lt;/p&gt;<a name="line.6221"></a>
<FONT color="green">6222</FONT>         *<a name="line.6222"></a>
<FONT color="green">6223</FONT>         * &lt;p&gt;This is the number of changes needed to change one String into<a name="line.6223"></a>
<FONT color="green">6224</FONT>         * another, where each change is a single character modification (deletion,<a name="line.6224"></a>
<FONT color="green">6225</FONT>         * insertion or substitution).&lt;/p&gt;<a name="line.6225"></a>
<FONT color="green">6226</FONT>         *<a name="line.6226"></a>
<FONT color="green">6227</FONT>         * &lt;p&gt;The previous implementation of the Levenshtein distance algorithm<a name="line.6227"></a>
<FONT color="green">6228</FONT>         * was from &lt;a href="http://www.merriampark.com/ld.htm"&gt;http://www.merriampark.com/ld.htm&lt;/a&gt;&lt;/p&gt;<a name="line.6228"></a>
<FONT color="green">6229</FONT>         *<a name="line.6229"></a>
<FONT color="green">6230</FONT>         * &lt;p&gt;Chas Emerick has written an implementation in Java, which avoids an OutOfMemoryError<a name="line.6230"></a>
<FONT color="green">6231</FONT>         * which can occur when my Java implementation is used with very large strings.&lt;br&gt;<a name="line.6231"></a>
<FONT color="green">6232</FONT>         * This implementation of the Levenshtein distance algorithm<a name="line.6232"></a>
<FONT color="green">6233</FONT>         * is from &lt;a href="http://www.merriampark.com/ldjava.htm"&gt;http://www.merriampark.com/ldjava.htm&lt;/a&gt;&lt;/p&gt;<a name="line.6233"></a>
<FONT color="green">6234</FONT>         *<a name="line.6234"></a>
<FONT color="green">6235</FONT>         * &lt;pre&gt;<a name="line.6235"></a>
<FONT color="green">6236</FONT>         * StringUtils.getLevenshteinDistance(null, *)             = IllegalArgumentException<a name="line.6236"></a>
<FONT color="green">6237</FONT>         * StringUtils.getLevenshteinDistance(*, null)             = IllegalArgumentException<a name="line.6237"></a>
<FONT color="green">6238</FONT>         * StringUtils.getLevenshteinDistance("","")               = 0<a name="line.6238"></a>
<FONT color="green">6239</FONT>         * StringUtils.getLevenshteinDistance("","a")              = 1<a name="line.6239"></a>
<FONT color="green">6240</FONT>         * StringUtils.getLevenshteinDistance("aaapppp", "")       = 7<a name="line.6240"></a>
<FONT color="green">6241</FONT>         * StringUtils.getLevenshteinDistance("frog", "fog")       = 1<a name="line.6241"></a>
<FONT color="green">6242</FONT>         * StringUtils.getLevenshteinDistance("fly", "ant")        = 3<a name="line.6242"></a>
<FONT color="green">6243</FONT>         * StringUtils.getLevenshteinDistance("elephant", "hippo") = 7<a name="line.6243"></a>
<FONT color="green">6244</FONT>         * StringUtils.getLevenshteinDistance("hippo", "elephant") = 7<a name="line.6244"></a>
<FONT color="green">6245</FONT>         * StringUtils.getLevenshteinDistance("hippo", "zzzzzzzz") = 8<a name="line.6245"></a>
<FONT color="green">6246</FONT>         * StringUtils.getLevenshteinDistance("hello", "hallo")    = 1<a name="line.6246"></a>
<FONT color="green">6247</FONT>         * &lt;/pre&gt;<a name="line.6247"></a>
<FONT color="green">6248</FONT>         *<a name="line.6248"></a>
<FONT color="green">6249</FONT>         * @param s  the first String, must not be null<a name="line.6249"></a>
<FONT color="green">6250</FONT>         * @param t  the second String, must not be null<a name="line.6250"></a>
<FONT color="green">6251</FONT>         * @return result distance<a name="line.6251"></a>
<FONT color="green">6252</FONT>         * @throws IllegalArgumentException if either String input &lt;code&gt;null&lt;/code&gt;<a name="line.6252"></a>
<FONT color="green">6253</FONT>         */<a name="line.6253"></a>
<FONT color="green">6254</FONT>        public static int getLevenshteinDistance(String s, String t) {<a name="line.6254"></a>
<FONT color="green">6255</FONT>            if (s == null || t == null) {<a name="line.6255"></a>
<FONT color="green">6256</FONT>                throw new IllegalArgumentException("Strings must not be null");<a name="line.6256"></a>
<FONT color="green">6257</FONT>            }<a name="line.6257"></a>
<FONT color="green">6258</FONT>    <a name="line.6258"></a>
<FONT color="green">6259</FONT>            /*<a name="line.6259"></a>
<FONT color="green">6260</FONT>               The difference between this impl. and the previous is that, rather <a name="line.6260"></a>
<FONT color="green">6261</FONT>               than creating and retaining a matrix of size s.length()+1 by t.length()+1, <a name="line.6261"></a>
<FONT color="green">6262</FONT>               we maintain two single-dimensional arrays of length s.length()+1.  The first, d,<a name="line.6262"></a>
<FONT color="green">6263</FONT>               is the 'current working' distance array that maintains the newest distance cost<a name="line.6263"></a>
<FONT color="green">6264</FONT>               counts as we iterate through the characters of String s.  Each time we increment<a name="line.6264"></a>
<FONT color="green">6265</FONT>               the index of String t we are comparing, d is copied to p, the second int[].  Doing so<a name="line.6265"></a>
<FONT color="green">6266</FONT>               allows us to retain the previous cost counts as required by the algorithm (taking <a name="line.6266"></a>
<FONT color="green">6267</FONT>               the minimum of the cost count to the left, up one, and diagonally up and to the left<a name="line.6267"></a>
<FONT color="green">6268</FONT>               of the current cost count being calculated).  (Note that the arrays aren't really <a name="line.6268"></a>
<FONT color="green">6269</FONT>               copied anymore, just switched...this is clearly much better than cloning an array <a name="line.6269"></a>
<FONT color="green">6270</FONT>               or doing a System.arraycopy() each time  through the outer loop.)<a name="line.6270"></a>
<FONT color="green">6271</FONT>    <a name="line.6271"></a>
<FONT color="green">6272</FONT>               Effectively, the difference between the two implementations is this one does not <a name="line.6272"></a>
<FONT color="green">6273</FONT>               cause an out of memory condition when calculating the LD over two very large strings.<a name="line.6273"></a>
<FONT color="green">6274</FONT>             */<a name="line.6274"></a>
<FONT color="green">6275</FONT>    <a name="line.6275"></a>
<FONT color="green">6276</FONT>            int n = s.length(); // length of s<a name="line.6276"></a>
<FONT color="green">6277</FONT>            int m = t.length(); // length of t<a name="line.6277"></a>
<FONT color="green">6278</FONT>    <a name="line.6278"></a>
<FONT color="green">6279</FONT>            if (n == 0) {<a name="line.6279"></a>
<FONT color="green">6280</FONT>                return m;<a name="line.6280"></a>
<FONT color="green">6281</FONT>            } else if (m == 0) {<a name="line.6281"></a>
<FONT color="green">6282</FONT>                return n;<a name="line.6282"></a>
<FONT color="green">6283</FONT>            }<a name="line.6283"></a>
<FONT color="green">6284</FONT>    <a name="line.6284"></a>
<FONT color="green">6285</FONT>            if (n &gt; m) {<a name="line.6285"></a>
<FONT color="green">6286</FONT>                // swap the input strings to consume less memory<a name="line.6286"></a>
<FONT color="green">6287</FONT>                String tmp = s;<a name="line.6287"></a>
<FONT color="green">6288</FONT>                s = t;<a name="line.6288"></a>
<FONT color="green">6289</FONT>                t = tmp;<a name="line.6289"></a>
<FONT color="green">6290</FONT>                n = m;<a name="line.6290"></a>
<FONT color="green">6291</FONT>                m = t.length();<a name="line.6291"></a>
<FONT color="green">6292</FONT>            }<a name="line.6292"></a>
<FONT color="green">6293</FONT>    <a name="line.6293"></a>
<FONT color="green">6294</FONT>            int p[] = new int[n+1]; //'previous' cost array, horizontally<a name="line.6294"></a>
<FONT color="green">6295</FONT>            int d[] = new int[n+1]; // cost array, horizontally<a name="line.6295"></a>
<FONT color="green">6296</FONT>            int _d[]; //placeholder to assist in swapping p and d<a name="line.6296"></a>
<FONT color="green">6297</FONT>    <a name="line.6297"></a>
<FONT color="green">6298</FONT>            // indexes into strings s and t<a name="line.6298"></a>
<FONT color="green">6299</FONT>            int i; // iterates through s<a name="line.6299"></a>
<FONT color="green">6300</FONT>            int j; // iterates through t<a name="line.6300"></a>
<FONT color="green">6301</FONT>    <a name="line.6301"></a>
<FONT color="green">6302</FONT>            char t_j; // jth character of t<a name="line.6302"></a>
<FONT color="green">6303</FONT>    <a name="line.6303"></a>
<FONT color="green">6304</FONT>            int cost; // cost<a name="line.6304"></a>
<FONT color="green">6305</FONT>    <a name="line.6305"></a>
<FONT color="green">6306</FONT>            for (i = 0; i&lt;=n; i++) {<a name="line.6306"></a>
<FONT color="green">6307</FONT>                p[i] = i;<a name="line.6307"></a>
<FONT color="green">6308</FONT>            }<a name="line.6308"></a>
<FONT color="green">6309</FONT>    <a name="line.6309"></a>
<FONT color="green">6310</FONT>            for (j = 1; j&lt;=m; j++) {<a name="line.6310"></a>
<FONT color="green">6311</FONT>                t_j = t.charAt(j-1);<a name="line.6311"></a>
<FONT color="green">6312</FONT>                d[0] = j;<a name="line.6312"></a>
<FONT color="green">6313</FONT>    <a name="line.6313"></a>
<FONT color="green">6314</FONT>                for (i=1; i&lt;=n; i++) {<a name="line.6314"></a>
<FONT color="green">6315</FONT>                    cost = s.charAt(i-1)==t_j ? 0 : 1;<a name="line.6315"></a>
<FONT color="green">6316</FONT>                    // minimum of cell to the left+1, to the top+1, diagonally left and up +cost<a name="line.6316"></a>
<FONT color="green">6317</FONT>                    d[i] = Math.min(Math.min(d[i-1]+1, p[i]+1),  p[i-1]+cost);<a name="line.6317"></a>
<FONT color="green">6318</FONT>                }<a name="line.6318"></a>
<FONT color="green">6319</FONT>    <a name="line.6319"></a>
<FONT color="green">6320</FONT>                // copy current distance counts to 'previous row' distance counts<a name="line.6320"></a>
<FONT color="green">6321</FONT>                _d = p;<a name="line.6321"></a>
<FONT color="green">6322</FONT>                p = d;<a name="line.6322"></a>
<FONT color="green">6323</FONT>                d = _d;<a name="line.6323"></a>
<FONT color="green">6324</FONT>            }<a name="line.6324"></a>
<FONT color="green">6325</FONT>    <a name="line.6325"></a>
<FONT color="green">6326</FONT>            // our last action in the above loop was to switch d and p, so p now <a name="line.6326"></a>
<FONT color="green">6327</FONT>            // actually has the most recent cost counts<a name="line.6327"></a>
<FONT color="green">6328</FONT>            return p[n];<a name="line.6328"></a>
<FONT color="green">6329</FONT>        }<a name="line.6329"></a>
<FONT color="green">6330</FONT>    <a name="line.6330"></a>
<FONT color="green">6331</FONT>        // startsWith<a name="line.6331"></a>
<FONT color="green">6332</FONT>        //-----------------------------------------------------------------------<a name="line.6332"></a>
<FONT color="green">6333</FONT>    <a name="line.6333"></a>
<FONT color="green">6334</FONT>        /**<a name="line.6334"></a>
<FONT color="green">6335</FONT>         * &lt;p&gt;Check if a String starts with a specified prefix.&lt;/p&gt;<a name="line.6335"></a>
<FONT color="green">6336</FONT>         *<a name="line.6336"></a>
<FONT color="green">6337</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt;s are handled without exceptions. Two &lt;code&gt;null&lt;/code&gt;<a name="line.6337"></a>
<FONT color="green">6338</FONT>         * references are considered to be equal. The comparison is case sensitive.&lt;/p&gt;<a name="line.6338"></a>
<FONT color="green">6339</FONT>         *<a name="line.6339"></a>
<FONT color="green">6340</FONT>         * &lt;pre&gt;<a name="line.6340"></a>
<FONT color="green">6341</FONT>         * StringUtils.startsWith(null, null)      = true<a name="line.6341"></a>
<FONT color="green">6342</FONT>         * StringUtils.startsWith(null, "abc")     = false<a name="line.6342"></a>
<FONT color="green">6343</FONT>         * StringUtils.startsWith("abcdef", null)  = false<a name="line.6343"></a>
<FONT color="green">6344</FONT>         * StringUtils.startsWith("abcdef", "abc") = true<a name="line.6344"></a>
<FONT color="green">6345</FONT>         * StringUtils.startsWith("ABCDEF", "abc") = false<a name="line.6345"></a>
<FONT color="green">6346</FONT>         * &lt;/pre&gt;<a name="line.6346"></a>
<FONT color="green">6347</FONT>         *<a name="line.6347"></a>
<FONT color="green">6348</FONT>         * @see java.lang.String#startsWith(String)<a name="line.6348"></a>
<FONT color="green">6349</FONT>         * @param str  the String to check, may be null<a name="line.6349"></a>
<FONT color="green">6350</FONT>         * @param prefix the prefix to find, may be null<a name="line.6350"></a>
<FONT color="green">6351</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String starts with the prefix, case sensitive, or<a name="line.6351"></a>
<FONT color="green">6352</FONT>         *  both &lt;code&gt;null&lt;/code&gt;<a name="line.6352"></a>
<FONT color="green">6353</FONT>         * @since 2.4<a name="line.6353"></a>
<FONT color="green">6354</FONT>         */<a name="line.6354"></a>
<FONT color="green">6355</FONT>        public static boolean startsWith(String str, String prefix) {<a name="line.6355"></a>
<FONT color="green">6356</FONT>            return startsWith(str, prefix, false);<a name="line.6356"></a>
<FONT color="green">6357</FONT>        }<a name="line.6357"></a>
<FONT color="green">6358</FONT>    <a name="line.6358"></a>
<FONT color="green">6359</FONT>        /**<a name="line.6359"></a>
<FONT color="green">6360</FONT>         * &lt;p&gt;Case insensitive check if a String starts with a specified prefix.&lt;/p&gt;<a name="line.6360"></a>
<FONT color="green">6361</FONT>         *<a name="line.6361"></a>
<FONT color="green">6362</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt;s are handled without exceptions. Two &lt;code&gt;null&lt;/code&gt;<a name="line.6362"></a>
<FONT color="green">6363</FONT>         * references are considered to be equal. The comparison is case insensitive.&lt;/p&gt;<a name="line.6363"></a>
<FONT color="green">6364</FONT>         *<a name="line.6364"></a>
<FONT color="green">6365</FONT>         * &lt;pre&gt;<a name="line.6365"></a>
<FONT color="green">6366</FONT>         * StringUtils.startsWithIgnoreCase(null, null)      = true<a name="line.6366"></a>
<FONT color="green">6367</FONT>         * StringUtils.startsWithIgnoreCase(null, "abc")     = false<a name="line.6367"></a>
<FONT color="green">6368</FONT>         * StringUtils.startsWithIgnoreCase("abcdef", null)  = false<a name="line.6368"></a>
<FONT color="green">6369</FONT>         * StringUtils.startsWithIgnoreCase("abcdef", "abc") = true<a name="line.6369"></a>
<FONT color="green">6370</FONT>         * StringUtils.startsWithIgnoreCase("ABCDEF", "abc") = true<a name="line.6370"></a>
<FONT color="green">6371</FONT>         * &lt;/pre&gt;<a name="line.6371"></a>
<FONT color="green">6372</FONT>         *<a name="line.6372"></a>
<FONT color="green">6373</FONT>         * @see java.lang.String#startsWith(String)<a name="line.6373"></a>
<FONT color="green">6374</FONT>         * @param str  the String to check, may be null<a name="line.6374"></a>
<FONT color="green">6375</FONT>         * @param prefix the prefix to find, may be null<a name="line.6375"></a>
<FONT color="green">6376</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String starts with the prefix, case insensitive, or<a name="line.6376"></a>
<FONT color="green">6377</FONT>         *  both &lt;code&gt;null&lt;/code&gt;<a name="line.6377"></a>
<FONT color="green">6378</FONT>         * @since 2.4<a name="line.6378"></a>
<FONT color="green">6379</FONT>         */<a name="line.6379"></a>
<FONT color="green">6380</FONT>        public static boolean startsWithIgnoreCase(String str, String prefix) {<a name="line.6380"></a>
<FONT color="green">6381</FONT>            return startsWith(str, prefix, true);<a name="line.6381"></a>
<FONT color="green">6382</FONT>        }<a name="line.6382"></a>
<FONT color="green">6383</FONT>    <a name="line.6383"></a>
<FONT color="green">6384</FONT>        /**<a name="line.6384"></a>
<FONT color="green">6385</FONT>         * &lt;p&gt;Check if a String starts with a specified prefix (optionally case insensitive).&lt;/p&gt;<a name="line.6385"></a>
<FONT color="green">6386</FONT>         *<a name="line.6386"></a>
<FONT color="green">6387</FONT>         * @see java.lang.String#startsWith(String)<a name="line.6387"></a>
<FONT color="green">6388</FONT>         * @param str  the String to check, may be null<a name="line.6388"></a>
<FONT color="green">6389</FONT>         * @param prefix the prefix to find, may be null<a name="line.6389"></a>
<FONT color="green">6390</FONT>         * @param ignoreCase inidicates whether the compare should ignore case<a name="line.6390"></a>
<FONT color="green">6391</FONT>         *  (case insensitive) or not.<a name="line.6391"></a>
<FONT color="green">6392</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String starts with the prefix or<a name="line.6392"></a>
<FONT color="green">6393</FONT>         *  both &lt;code&gt;null&lt;/code&gt;<a name="line.6393"></a>
<FONT color="green">6394</FONT>         */<a name="line.6394"></a>
<FONT color="green">6395</FONT>        private static boolean startsWith(String str, String prefix, boolean ignoreCase) {<a name="line.6395"></a>
<FONT color="green">6396</FONT>            if (str == null || prefix == null) {<a name="line.6396"></a>
<FONT color="green">6397</FONT>                return (str == null &amp;&amp; prefix == null);<a name="line.6397"></a>
<FONT color="green">6398</FONT>            }<a name="line.6398"></a>
<FONT color="green">6399</FONT>            if (prefix.length() &gt; str.length()) {<a name="line.6399"></a>
<FONT color="green">6400</FONT>                return false;<a name="line.6400"></a>
<FONT color="green">6401</FONT>            }<a name="line.6401"></a>
<FONT color="green">6402</FONT>            return str.regionMatches(ignoreCase, 0, prefix, 0, prefix.length());<a name="line.6402"></a>
<FONT color="green">6403</FONT>        }<a name="line.6403"></a>
<FONT color="green">6404</FONT>        <a name="line.6404"></a>
<FONT color="green">6405</FONT>        /**<a name="line.6405"></a>
<FONT color="green">6406</FONT>         * &lt;p&gt;Check if a String starts with any of an array of specified strings.&lt;/p&gt;<a name="line.6406"></a>
<FONT color="green">6407</FONT>         * <a name="line.6407"></a>
<FONT color="green">6408</FONT>         * &lt;pre&gt;<a name="line.6408"></a>
<FONT color="green">6409</FONT>         * StringUtils.startsWithAny(null, null)      = false<a name="line.6409"></a>
<FONT color="green">6410</FONT>         * StringUtils.startsWithAny(null, new String[] {"abc"})  = false<a name="line.6410"></a>
<FONT color="green">6411</FONT>         * StringUtils.startsWithAny("abcxyz", null)     = false<a name="line.6411"></a>
<FONT color="green">6412</FONT>         * StringUtils.startsWithAny("abcxyz", new String[] {""}) = false<a name="line.6412"></a>
<FONT color="green">6413</FONT>         * StringUtils.startsWithAny("abcxyz", new String[] {"abc"}) = true<a name="line.6413"></a>
<FONT color="green">6414</FONT>         * StringUtils.startsWithAny("abcxyz", new String[] {null, "xyz", "abc"}) = true<a name="line.6414"></a>
<FONT color="green">6415</FONT>         * &lt;/pre&gt;<a name="line.6415"></a>
<FONT color="green">6416</FONT>         *<a name="line.6416"></a>
<FONT color="green">6417</FONT>         * @see #startsWith(String, String)<a name="line.6417"></a>
<FONT color="green">6418</FONT>         * @param string  the String to check, may be null<a name="line.6418"></a>
<FONT color="green">6419</FONT>         * @param searchStrings the Strings to find, may be null or empty<a name="line.6419"></a>
<FONT color="green">6420</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String starts with any of the the prefixes, case insensitive, or<a name="line.6420"></a>
<FONT color="green">6421</FONT>         *  both &lt;code&gt;null&lt;/code&gt;<a name="line.6421"></a>
<FONT color="green">6422</FONT>         * @since 2.5<a name="line.6422"></a>
<FONT color="green">6423</FONT>         */<a name="line.6423"></a>
<FONT color="green">6424</FONT>        public static boolean startsWithAny(String string, String[] searchStrings) {<a name="line.6424"></a>
<FONT color="green">6425</FONT>            if (isEmpty(string) || ArrayUtils.isEmpty(searchStrings)) {<a name="line.6425"></a>
<FONT color="green">6426</FONT>                return false;<a name="line.6426"></a>
<FONT color="green">6427</FONT>            }<a name="line.6427"></a>
<FONT color="green">6428</FONT>            for (int i = 0; i &lt; searchStrings.length; i++) {<a name="line.6428"></a>
<FONT color="green">6429</FONT>                String searchString = searchStrings[i];<a name="line.6429"></a>
<FONT color="green">6430</FONT>                if (StringUtils.startsWith(string, searchString)) {<a name="line.6430"></a>
<FONT color="green">6431</FONT>                    return true;<a name="line.6431"></a>
<FONT color="green">6432</FONT>                }<a name="line.6432"></a>
<FONT color="green">6433</FONT>            }<a name="line.6433"></a>
<FONT color="green">6434</FONT>            return false;<a name="line.6434"></a>
<FONT color="green">6435</FONT>        }<a name="line.6435"></a>
<FONT color="green">6436</FONT>    <a name="line.6436"></a>
<FONT color="green">6437</FONT>        // endsWith<a name="line.6437"></a>
<FONT color="green">6438</FONT>        //-----------------------------------------------------------------------<a name="line.6438"></a>
<FONT color="green">6439</FONT>    <a name="line.6439"></a>
<FONT color="green">6440</FONT>        /**<a name="line.6440"></a>
<FONT color="green">6441</FONT>         * &lt;p&gt;Check if a String ends with a specified suffix.&lt;/p&gt;<a name="line.6441"></a>
<FONT color="green">6442</FONT>         *<a name="line.6442"></a>
<FONT color="green">6443</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt;s are handled without exceptions. Two &lt;code&gt;null&lt;/code&gt;<a name="line.6443"></a>
<FONT color="green">6444</FONT>         * references are considered to be equal. The comparison is case sensitive.&lt;/p&gt;<a name="line.6444"></a>
<FONT color="green">6445</FONT>         *<a name="line.6445"></a>
<FONT color="green">6446</FONT>         * &lt;pre&gt;<a name="line.6446"></a>
<FONT color="green">6447</FONT>         * StringUtils.endsWith(null, null)      = true<a name="line.6447"></a>
<FONT color="green">6448</FONT>         * StringUtils.endsWith(null, "def")     = false<a name="line.6448"></a>
<FONT color="green">6449</FONT>         * StringUtils.endsWith("abcdef", null)  = false<a name="line.6449"></a>
<FONT color="green">6450</FONT>         * StringUtils.endsWith("abcdef", "def") = true<a name="line.6450"></a>
<FONT color="green">6451</FONT>         * StringUtils.endsWith("ABCDEF", "def") = false<a name="line.6451"></a>
<FONT color="green">6452</FONT>         * StringUtils.endsWith("ABCDEF", "cde") = false<a name="line.6452"></a>
<FONT color="green">6453</FONT>         * &lt;/pre&gt;<a name="line.6453"></a>
<FONT color="green">6454</FONT>         *<a name="line.6454"></a>
<FONT color="green">6455</FONT>         * @see java.lang.String#endsWith(String)<a name="line.6455"></a>
<FONT color="green">6456</FONT>         * @param str  the String to check, may be null<a name="line.6456"></a>
<FONT color="green">6457</FONT>         * @param suffix the suffix to find, may be null<a name="line.6457"></a>
<FONT color="green">6458</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String ends with the suffix, case sensitive, or<a name="line.6458"></a>
<FONT color="green">6459</FONT>         *  both &lt;code&gt;null&lt;/code&gt;<a name="line.6459"></a>
<FONT color="green">6460</FONT>         * @since 2.4<a name="line.6460"></a>
<FONT color="green">6461</FONT>         */<a name="line.6461"></a>
<FONT color="green">6462</FONT>        public static boolean endsWith(String str, String suffix) {<a name="line.6462"></a>
<FONT color="green">6463</FONT>            return endsWith(str, suffix, false);<a name="line.6463"></a>
<FONT color="green">6464</FONT>        }<a name="line.6464"></a>
<FONT color="green">6465</FONT>    <a name="line.6465"></a>
<FONT color="green">6466</FONT>        /**<a name="line.6466"></a>
<FONT color="green">6467</FONT>         * &lt;p&gt;Case insensitive check if a String ends with a specified suffix.&lt;/p&gt;<a name="line.6467"></a>
<FONT color="green">6468</FONT>         *<a name="line.6468"></a>
<FONT color="green">6469</FONT>         * &lt;p&gt;&lt;code&gt;null&lt;/code&gt;s are handled without exceptions. Two &lt;code&gt;null&lt;/code&gt;<a name="line.6469"></a>
<FONT color="green">6470</FONT>         * references are considered to be equal. The comparison is case insensitive.&lt;/p&gt;<a name="line.6470"></a>
<FONT color="green">6471</FONT>         *<a name="line.6471"></a>
<FONT color="green">6472</FONT>         * &lt;pre&gt;<a name="line.6472"></a>
<FONT color="green">6473</FONT>         * StringUtils.endsWithIgnoreCase(null, null)      = true<a name="line.6473"></a>
<FONT color="green">6474</FONT>         * StringUtils.endsWithIgnoreCase(null, "def")     = false<a name="line.6474"></a>
<FONT color="green">6475</FONT>         * StringUtils.endsWithIgnoreCase("abcdef", null)  = false<a name="line.6475"></a>
<FONT color="green">6476</FONT>         * StringUtils.endsWithIgnoreCase("abcdef", "def") = true<a name="line.6476"></a>
<FONT color="green">6477</FONT>         * StringUtils.endsWithIgnoreCase("ABCDEF", "def") = true<a name="line.6477"></a>
<FONT color="green">6478</FONT>         * StringUtils.endsWithIgnoreCase("ABCDEF", "cde") = false<a name="line.6478"></a>
<FONT color="green">6479</FONT>         * &lt;/pre&gt;<a name="line.6479"></a>
<FONT color="green">6480</FONT>         *<a name="line.6480"></a>
<FONT color="green">6481</FONT>         * @see java.lang.String#endsWith(String)<a name="line.6481"></a>
<FONT color="green">6482</FONT>         * @param str  the String to check, may be null<a name="line.6482"></a>
<FONT color="green">6483</FONT>         * @param suffix the suffix to find, may be null<a name="line.6483"></a>
<FONT color="green">6484</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String ends with the suffix, case insensitive, or<a name="line.6484"></a>
<FONT color="green">6485</FONT>         *  both &lt;code&gt;null&lt;/code&gt;<a name="line.6485"></a>
<FONT color="green">6486</FONT>         * @since 2.4<a name="line.6486"></a>
<FONT color="green">6487</FONT>         */<a name="line.6487"></a>
<FONT color="green">6488</FONT>        public static boolean endsWithIgnoreCase(String str, String suffix) {<a name="line.6488"></a>
<FONT color="green">6489</FONT>            return endsWith(str, suffix, true);<a name="line.6489"></a>
<FONT color="green">6490</FONT>        }<a name="line.6490"></a>
<FONT color="green">6491</FONT>    <a name="line.6491"></a>
<FONT color="green">6492</FONT>        /**<a name="line.6492"></a>
<FONT color="green">6493</FONT>         * &lt;p&gt;Check if a String ends with a specified suffix (optionally case insensitive).&lt;/p&gt;<a name="line.6493"></a>
<FONT color="green">6494</FONT>         *<a name="line.6494"></a>
<FONT color="green">6495</FONT>         * @see java.lang.String#endsWith(String)<a name="line.6495"></a>
<FONT color="green">6496</FONT>         * @param str  the String to check, may be null<a name="line.6496"></a>
<FONT color="green">6497</FONT>         * @param suffix the suffix to find, may be null<a name="line.6497"></a>
<FONT color="green">6498</FONT>         * @param ignoreCase inidicates whether the compare should ignore case<a name="line.6498"></a>
<FONT color="green">6499</FONT>         *  (case insensitive) or not.<a name="line.6499"></a>
<FONT color="green">6500</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String starts with the prefix or<a name="line.6500"></a>
<FONT color="green">6501</FONT>         *  both &lt;code&gt;null&lt;/code&gt;<a name="line.6501"></a>
<FONT color="green">6502</FONT>         */<a name="line.6502"></a>
<FONT color="green">6503</FONT>        private static boolean endsWith(String str, String suffix, boolean ignoreCase) {<a name="line.6503"></a>
<FONT color="green">6504</FONT>            if (str == null || suffix == null) {<a name="line.6504"></a>
<FONT color="green">6505</FONT>                return (str == null &amp;&amp; suffix == null);<a name="line.6505"></a>
<FONT color="green">6506</FONT>            }<a name="line.6506"></a>
<FONT color="green">6507</FONT>            if (suffix.length() &gt; str.length()) {<a name="line.6507"></a>
<FONT color="green">6508</FONT>                return false;<a name="line.6508"></a>
<FONT color="green">6509</FONT>            }<a name="line.6509"></a>
<FONT color="green">6510</FONT>            int strOffset = str.length() - suffix.length();<a name="line.6510"></a>
<FONT color="green">6511</FONT>            return str.regionMatches(ignoreCase, strOffset, suffix, 0, suffix.length());<a name="line.6511"></a>
<FONT color="green">6512</FONT>        }<a name="line.6512"></a>
<FONT color="green">6513</FONT>    <a name="line.6513"></a>
<FONT color="green">6514</FONT>        /**<a name="line.6514"></a>
<FONT color="green">6515</FONT>         * &lt;p&gt;<a name="line.6515"></a>
<FONT color="green">6516</FONT>         * Similar to &lt;a<a name="line.6516"></a>
<FONT color="green">6517</FONT>         * href="http://www.w3.org/TR/xpath/#function-normalize-space"&gt;http://www.w3.org/TR/xpath/#function-normalize<a name="line.6517"></a>
<FONT color="green">6518</FONT>         * -space&lt;/a&gt;<a name="line.6518"></a>
<FONT color="green">6519</FONT>         * &lt;/p&gt;<a name="line.6519"></a>
<FONT color="green">6520</FONT>         * &lt;p&gt;<a name="line.6520"></a>
<FONT color="green">6521</FONT>         * The function returns the argument string with whitespace normalized by using<a name="line.6521"></a>
<FONT color="green">6522</FONT>         * &lt;code&gt;{@link #trim(String)}&lt;/code&gt; to remove leading and trailing whitespace<a name="line.6522"></a>
<FONT color="green">6523</FONT>         * and then replacing sequences of whitespace characters by a single space.<a name="line.6523"></a>
<FONT color="green">6524</FONT>         * &lt;/p&gt;<a name="line.6524"></a>
<FONT color="green">6525</FONT>         * In XML Whitespace characters are the same as those allowed by the &lt;a<a name="line.6525"></a>
<FONT color="green">6526</FONT>         * href="http://www.w3.org/TR/REC-xml/#NT-S"&gt;S&lt;/a&gt; production, which is S ::= (#x20 | #x9 | #xD | #xA)+<a name="line.6526"></a>
<FONT color="green">6527</FONT>         * &lt;p&gt;<a name="line.6527"></a>
<FONT color="green">6528</FONT>         * See Java's {@link Character#isWhitespace(char)} for which characters are considered whitespace.<a name="line.6528"></a>
<FONT color="green">6529</FONT>         * &lt;p&gt;<a name="line.6529"></a>
<FONT color="green">6530</FONT>         * The difference is that Java's whitespace includes vertical tab and form feed, which this functional will also<a name="line.6530"></a>
<FONT color="green">6531</FONT>         * normalize. Additonally &lt;code&gt;{@link #trim(String)}&lt;/code&gt; removes control characters (char &amp;lt;= 32) from both<a name="line.6531"></a>
<FONT color="green">6532</FONT>         * ends of this String.<a name="line.6532"></a>
<FONT color="green">6533</FONT>         * &lt;/p&gt;<a name="line.6533"></a>
<FONT color="green">6534</FONT>         *<a name="line.6534"></a>
<FONT color="green">6535</FONT>         * @see Character#isWhitespace(char)<a name="line.6535"></a>
<FONT color="green">6536</FONT>         * @see #trim(String)<a name="line.6536"></a>
<FONT color="green">6537</FONT>         * @see &lt;ahref="http://www.w3.org/TR/xpath/#function-normalize-space"&gt;<a name="line.6537"></a>
<FONT color="green">6538</FONT>         *              http://www.w3.org/TR/xpath/#function-normalize-space&lt;/a&gt;<a name="line.6538"></a>
<FONT color="green">6539</FONT>         * @param str the source String to normalize whitespaces from, may be null<a name="line.6539"></a>
<FONT color="green">6540</FONT>         * @return the modified string with whitespace normalized, &lt;code&gt;null&lt;/code&gt; if null String input<a name="line.6540"></a>
<FONT color="green">6541</FONT>         * <a name="line.6541"></a>
<FONT color="green">6542</FONT>         * @since 2.6<a name="line.6542"></a>
<FONT color="green">6543</FONT>         */<a name="line.6543"></a>
<FONT color="green">6544</FONT>        public static String normalizeSpace(String str) {<a name="line.6544"></a>
<FONT color="green">6545</FONT>            str = strip(str);<a name="line.6545"></a>
<FONT color="green">6546</FONT>            if(str == null || str.length() &lt;= 2) {<a name="line.6546"></a>
<FONT color="green">6547</FONT>                return str;<a name="line.6547"></a>
<FONT color="green">6548</FONT>            }<a name="line.6548"></a>
<FONT color="green">6549</FONT>            StrBuilder b = new StrBuilder(str.length());<a name="line.6549"></a>
<FONT color="green">6550</FONT>            for (int i = 0; i &lt; str.length(); i++) {<a name="line.6550"></a>
<FONT color="green">6551</FONT>                char c = str.charAt(i);<a name="line.6551"></a>
<FONT color="green">6552</FONT>                if (Character.isWhitespace(c)) {<a name="line.6552"></a>
<FONT color="green">6553</FONT>                    if (i &gt; 0 &amp;&amp; !Character.isWhitespace(str.charAt(i - 1))) {<a name="line.6553"></a>
<FONT color="green">6554</FONT>                        b.append(' ');<a name="line.6554"></a>
<FONT color="green">6555</FONT>                    }<a name="line.6555"></a>
<FONT color="green">6556</FONT>                } else {<a name="line.6556"></a>
<FONT color="green">6557</FONT>                    b.append(c);<a name="line.6557"></a>
<FONT color="green">6558</FONT>                }<a name="line.6558"></a>
<FONT color="green">6559</FONT>            }<a name="line.6559"></a>
<FONT color="green">6560</FONT>            return b.toString();<a name="line.6560"></a>
<FONT color="green">6561</FONT>        }<a name="line.6561"></a>
<FONT color="green">6562</FONT>    <a name="line.6562"></a>
<FONT color="green">6563</FONT>        /**<a name="line.6563"></a>
<FONT color="green">6564</FONT>         * &lt;p&gt;Check if a String ends with any of an array of specified strings.&lt;/p&gt;<a name="line.6564"></a>
<FONT color="green">6565</FONT>         *<a name="line.6565"></a>
<FONT color="green">6566</FONT>         * &lt;pre&gt;<a name="line.6566"></a>
<FONT color="green">6567</FONT>         * StringUtils.endsWithAny(null, null)      = false<a name="line.6567"></a>
<FONT color="green">6568</FONT>         * StringUtils.endsWithAny(null, new String[] {"abc"})  = false<a name="line.6568"></a>
<FONT color="green">6569</FONT>         * StringUtils.endsWithAny("abcxyz", null)     = false<a name="line.6569"></a>
<FONT color="green">6570</FONT>         * StringUtils.endsWithAny("abcxyz", new String[] {""}) = true<a name="line.6570"></a>
<FONT color="green">6571</FONT>         * StringUtils.endsWithAny("abcxyz", new String[] {"xyz"}) = true<a name="line.6571"></a>
<FONT color="green">6572</FONT>         * StringUtils.endsWithAny("abcxyz", new String[] {null, "xyz", "abc"}) = true<a name="line.6572"></a>
<FONT color="green">6573</FONT>         * &lt;/pre&gt;<a name="line.6573"></a>
<FONT color="green">6574</FONT>         *<a name="line.6574"></a>
<FONT color="green">6575</FONT>         * @param string  the String to check, may be null<a name="line.6575"></a>
<FONT color="green">6576</FONT>         * @param searchStrings the Strings to find, may be null or empty<a name="line.6576"></a>
<FONT color="green">6577</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the String ends with any of the the prefixes, case insensitive, or<a name="line.6577"></a>
<FONT color="green">6578</FONT>         *  both &lt;code&gt;null&lt;/code&gt;<a name="line.6578"></a>
<FONT color="green">6579</FONT>         * @since 2.6<a name="line.6579"></a>
<FONT color="green">6580</FONT>         */<a name="line.6580"></a>
<FONT color="green">6581</FONT>        public static boolean endsWithAny(String string, String[] searchStrings) {<a name="line.6581"></a>
<FONT color="green">6582</FONT>            if (isEmpty(string) || ArrayUtils.isEmpty(searchStrings)) {<a name="line.6582"></a>
<FONT color="green">6583</FONT>                return false;<a name="line.6583"></a>
<FONT color="green">6584</FONT>            }<a name="line.6584"></a>
<FONT color="green">6585</FONT>            for (int i = 0; i &lt; searchStrings.length; i++) {<a name="line.6585"></a>
<FONT color="green">6586</FONT>                String searchString = searchStrings[i];<a name="line.6586"></a>
<FONT color="green">6587</FONT>                if (StringUtils.endsWith(string, searchString)) {<a name="line.6587"></a>
<FONT color="green">6588</FONT>                    return true;<a name="line.6588"></a>
<FONT color="green">6589</FONT>                }<a name="line.6589"></a>
<FONT color="green">6590</FONT>            }<a name="line.6590"></a>
<FONT color="green">6591</FONT>            return false;<a name="line.6591"></a>
<FONT color="green">6592</FONT>        }<a name="line.6592"></a>
<FONT color="green">6593</FONT>    <a name="line.6593"></a>
<FONT color="green">6594</FONT>    }<a name="line.6594"></a>




























































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